diff --git a/src/constants/error-code.constant.ts b/src/constants/error-code.constant.ts
index 688571a..beb178b 100644
--- a/src/constants/error-code.constant.ts
+++ b/src/constants/error-code.constant.ts
@@ -57,6 +57,7 @@ export enum ErrorEnum {
   // Contract
   CONTRACT_NUMBER_EXIST = '1407:存在相同的合同编号',
 
-  // Inventory 库存不足
-  INVENTORY_INSUFFICIENT = '1408:库存不足'
+  // Inventory 
+  INVENTORY_INSUFFICIENT = '1408:库存不足',
+  MATERIALS_IN_OUT_NOT_FOUND = '1409:出入库信息不存在',
 }
diff --git a/src/modules/materials_inventory/in_out/materials_in_out.service.ts b/src/modules/materials_inventory/in_out/materials_in_out.service.ts
index 7bff520..aea3e81 100644
--- a/src/modules/materials_inventory/in_out/materials_in_out.service.ts
+++ b/src/modules/materials_inventory/in_out/materials_in_out.service.ts
@@ -18,6 +18,7 @@ import { ParamConfigEntity } from '~/modules/system/param-config/param-config.en
 import { MaterialsInOrOutEnum, ParamConfigEnum } from '~/constants/enum';
 import { MaterialsInventoryEntity } from '../materials_inventory.entity';
 import { MaterialsInventoryService } from '../materials_inventory.service';
+import { isDefined } from 'class-validator';
 
 @Injectable()
 export class MaterialsInOutService {
@@ -83,8 +84,8 @@ export class MaterialsInOutService {
    * 新增
    */
   async create(dto: MaterialsInOutDto): Promise<void> {
-    let { inOrOut, inventoryNumber } = dto;
-    if (inOrOut === MaterialsInOrOutEnum.In) {
+    let { inOrOut, inventoryNumber, projectId } = dto;
+    if (Object.is(inOrOut, MaterialsInOrOutEnum.In)) {
       // 入库
       inventoryNumber = await this.generateInventoryNumber();
     } else {
@@ -100,12 +101,16 @@ export class MaterialsInOutService {
 
     await this.entityManager.transaction(async manager => {
       // 1.生成出入库记录
-      const { productId, quantity } = await manager.create(MaterialsInOutEntity, {
+      const { productId, quantity, unitPrice } = await manager.save(MaterialsInOutEntity, {
         ...this.materialsInOutRepository.create(dto),
         inventoryNumber
       });
-      // 2.更新库存
-      await this.materialsInventoryService.inInventory({ productId, inQuantity: quantity });
+      // 2.更新增减库存
+      await (
+        Object.is(inOrOut, MaterialsInOrOutEnum.In)
+          ? this.materialsInventoryService.inInventory
+          : this.materialsInventoryService.outInventory
+      )({ productId, quantity, unitPrice, projectId }, manager);
     });
   }
 
@@ -114,9 +119,52 @@ export class MaterialsInOutService {
    */
   async update(id: number, { fileIds, ...data }: Partial<MaterialsInOutUpdateDto>): Promise<void> {
     await this.entityManager.transaction(async manager => {
+      const entity = await manager.findOne(MaterialsInOutEntity, {
+        where: {
+          id
+        },
+        lock: { mode: 'pessimistic_write' }
+      });
       await manager.update(MaterialsInOutEntity, id, {
         ...data
       });
+      let changedQuantity = 0;
+      if (isDefined(data.quantity) && entity.quantity !== data.quantity) {
+        if (entity.inOrOut === MaterialsInOrOutEnum.In) {
+          // 入库减少等于出库
+          if (data.quantity - entity.quantity < 0) {
+            data.inOrOut = MaterialsInOrOutEnum.Out;
+          } else {
+            // 入库增多等于入库
+            data.inOrOut = MaterialsInOrOutEnum.In;
+          }
+        } else {
+          // 出库减少等于入库
+          if (data.quantity - entity.quantity < 0) {
+            data.inOrOut = MaterialsInOrOutEnum.In;
+          } else {
+            // 出库增多等于出库
+            data.inOrOut = MaterialsInOrOutEnum.Out;
+          }
+        }
+        changedQuantity = Math.abs(data.quantity - entity.quantity);
+      }
+      // 2.更新增减库存
+      if (changedQuantity !== 0) {
+        await (
+          Object.is(data.inOrOut, MaterialsInOrOutEnum.In)
+            ? this.materialsInventoryService.inInventory
+            : this.materialsInventoryService.outInventory
+        )(
+          {
+            productId: entity.productId,
+            quantity: Math.abs(changedQuantity),
+            unitPrice: undefined,
+            projectId: entity.projectId
+          },
+          manager
+        );
+      }
       if (fileIds?.length) {
         const count = await this.storageRepository
           .createQueryBuilder('storage')
@@ -139,6 +187,34 @@ export class MaterialsInOutService {
    * 删除
    */
   async delete(id: number): Promise<void> {
+    await this.entityManager.transaction(async manager => {
+      const entity = await manager.findOne(MaterialsInOutEntity, {
+        where: {
+          id,
+          isDelete: 0
+        },
+        lock: { mode: 'pessimistic_write' }
+      });
+      if (!entity) {
+        throw new BusinessException(ErrorEnum.MATERIALS_IN_OUT_NOT_FOUND);
+      }
+
+      // 更新库存
+      await (
+        Object.is(entity.inOrOut, MaterialsInOrOutEnum.In)
+          ? this.materialsInventoryService.outInventory
+          : this.materialsInventoryService.inInventory
+      )(
+        {
+          productId: entity.productId,
+          quantity: entity.quantity,
+          unitPrice: undefined,
+          projectId: entity.projectId
+        },
+        manager
+      );
+    });
+
     // 出入库比较重要，做逻辑删除
     await this.materialsInOutRepository.update(id, { isDelete: 1 });
   }
diff --git a/src/modules/materials_inventory/materials_inventory.entity.ts b/src/modules/materials_inventory/materials_inventory.entity.ts
index 0d7fc29..b8c509a 100644
--- a/src/modules/materials_inventory/materials_inventory.entity.ts
+++ b/src/modules/materials_inventory/materials_inventory.entity.ts
@@ -1,9 +1,19 @@
 import { ApiProperty } from '@nestjs/swagger';
-import { Column, Entity, JoinTable, ManyToMany, Relation } from 'typeorm';
+import { Column, Entity, JoinColumn, JoinTable, ManyToMany, ManyToOne, Relation } from 'typeorm';
 import { CommonEntity } from '~/common/entity/common.entity';
+import { ProductEntity } from '../product/product.entity';
+import { ProjectEntity } from '../project/project.entity';
 
 @Entity({ name: 'materials_inventory' })
 export class MaterialsInventoryEntity extends CommonEntity {
+  @Column({
+    name: 'project_id',
+    type: 'int',
+    comment: '项目'
+  })
+  @ApiProperty({ description: '项目' })
+  projectId: number;
+
   @Column({
     name: 'product_id',
     type: 'int',
@@ -24,9 +34,9 @@ export class MaterialsInventoryEntity extends CommonEntity {
   @Column({
     name: 'unit_price',
     type: 'decimal',
-    precision: 10,
+    precision: 15,
     default: 0,
-    scale: 2,
+    scale: 10,
     comment: '库存产品单价'
   })
   @ApiProperty({ description: '库存产品单价' })
@@ -39,4 +49,12 @@ export class MaterialsInventoryEntity extends CommonEntity {
   @Column({ name: 'is_delete', type: 'tinyint', default: 0, comment: '是否删除' })
   @ApiProperty({ description: '删除状态：0未删除，1已删除' })
   isDelete: number;
+
+  @ManyToOne(() => ProjectEntity)
+  @JoinColumn({ name: 'project_id' })
+  project: ProjectEntity;
+
+  @ManyToOne(() => ProductEntity)
+  @JoinColumn({ name: 'product_id' })
+  product: ProductEntity;
 }
diff --git a/src/modules/materials_inventory/materials_inventory.service.ts b/src/modules/materials_inventory/materials_inventory.service.ts
index 4033086..c305d57 100644
--- a/src/modules/materials_inventory/materials_inventory.service.ts
+++ b/src/modules/materials_inventory/materials_inventory.service.ts
@@ -1,7 +1,7 @@
 import { Injectable } from '@nestjs/common';
 import { InjectEntityManager, InjectRepository } from '@nestjs/typeorm';
 import { MaterialsInventoryEntity } from './materials_inventory.entity';
-import { EntityManager, Repository } from 'typeorm';
+import { EntityManager, In, MoreThan, Repository } from 'typeorm';
 import {
   MaterialsInventoryDto,
   MaterialsInventoryExportDto,
@@ -15,7 +15,7 @@ import * as ExcelJS from 'exceljs';
 import dayjs from 'dayjs';
 import { MaterialsInOutEntity } from './in_out/materials_in_out.entity';
 import { fieldSearch } from '~/shared/database/field-search';
-import { groupBy, uniqBy } from 'lodash';
+import { groupBy, sum, uniqBy } from 'lodash';
 import { MaterialsInOrOutEnum } from '~/constants/enum';
 import { ProjectEntity } from '../project/project.entity';
 import { calcNumber } from '~/utils';
@@ -48,6 +48,13 @@ export class MaterialsInventoryService {
     if (projectId) {
       projects = [await this.projectRepository.findOneBy({ id: projectId })];
     }
+    // 查询出项目产品所属的当前库存
+    const inventoriesInProjects = await this.materialsInventoryRepository.find({
+      where: {
+        ...(projects?.length ? { projectId: In(projects.map(item => item.id)) } : null)
+      }
+    });
+
     // 生成数据
     const sqb = this.materialsInOutRepository
       .createQueryBuilder('mio')
@@ -56,12 +63,15 @@ export class MaterialsInventoryService {
       .leftJoin('product.unit', 'unit')
       .leftJoin('product.company', 'company')
       .addSelect(['project.id', 'project.name', 'product.name', 'unit.label', 'company.name'])
-      .where(fieldSearch({ time }))
+      .where({
+        time: MoreThan(time[0])
+      })
       .andWhere('mio.isDelete = 0');
 
     if (projectId) {
       sqb.andWhere('project.id = :projectId', { projectId });
     }
+
     const data = await sqb.addOrderBy('mio.time', 'DESC').getMany();
     if (!projectId) {
       projects = uniqBy(
@@ -71,12 +81,19 @@ export class MaterialsInventoryService {
     }
 
     for (const project of projects) {
+      const currentProjectInventories = inventoriesInProjects.filter(({ projectId }) =>
+        Object.is(projectId, project.id)
+      );
       const currentProjectData = data.filter(item => item.projectId === project.id);
+      const currentMonthProjectData = currentProjectData.filter(item => {
+        return (
+          dayjs(item.time).isAfter(dayjs(time[0])) && dayjs(item.time).isBefore(dayjs(time[1]))
+        );
+      });
       const sheet = workbook.addWorksheet(project.name);
       sheet.mergeCells('A1:T1');
       // 设置标题
       sheet.getCell('A1').value = '山东矿机华信智能科技有限公司原材料盘点表';
-
       // 设置日期
       sheet.mergeCells('A2:B2');
       sheet.getCell('A2').value = `日期：${dayjs(time[0]).format('YYYY年M月')}`;
@@ -168,21 +185,53 @@ export class MaterialsInventoryService {
         }
       });
 
-      const groupedData = groupBy<MaterialsInOutEntity>(currentProjectData, 'inventoryNumber');
+      const groupedData = groupBy<MaterialsInOutEntity>(currentMonthProjectData, 'inventoryNumber');
       let number = 0;
+      const groupedInventories = groupBy(
+        currentProjectInventories,
+        item => `${item.projectId}_${item.productId}`
+      );
       for (const key in groupedData) {
         // 目前暂定逻辑出库只有一次或者没有出库。不会对一个入库的记录多次出库,故而用find。
         const inRecord = groupedData[key].find(item => item.inOrOut === MaterialsInOrOutEnum.In);
         const outRecord = groupedData[key].find(item => item.inOrOut === MaterialsInOrOutEnum.Out);
+        const currInventories =
+          groupedInventories[`${inRecord.projectId}_${inRecord.productId}`]?.shift();
+        const allDataFromMonth = data.filter(
+          res => res.projectId === inRecord.projectId && res.productId === inRecord.productId
+        );
+        let currentQuantity = 0;
+        let balanceQuantity = 0;
+        // 月初库存数量
+        if (currInventories) {
+          const sumIn = sum(
+            allDataFromMonth
+              .filter(res => Object.is(res.inOrOut, MaterialsInOrOutEnum.In))
+              .map(item => item.quantity)
+          );
+          const sumOut = sum(
+            allDataFromMonth
+              .filter(res => Object.is(res.inOrOut, MaterialsInOrOutEnum.Out))
+              .map(item => item.quantity)
+          );
+          const sumDistance = calcNumber(sumIn, sumOut, 'subtract');
+          currentQuantity = calcNumber(currInventories.quantity, sumDistance, 'subtract');
+        }
+        // 结存库存数量
+        balanceQuantity = calcNumber(
+          currentQuantity,
+          calcNumber(inRecord.quantity, outRecord.quantity, 'subtract'),
+          'add'
+        );
         number++;
         sheet.addRow([
-          `${inRecord.inventoryNumber}`,
-          inRecord.product.company.name,
-          inRecord.product.name,
-          inRecord.product.unit.label,
-          '0',
-          '0',
-          '0',
+          `${inRecord.inventoryNumber || ''}`,
+          inRecord.product.company.name || '',
+          inRecord.product.name || '',
+          inRecord.product.unit.label || '',
+          currentQuantity,
+          parseFloat(`${inRecord.unitPrice || 0}`),
+          calcNumber(currentQuantity, inRecord.unitPrice || 0, 'multiply'),
           inRecord.time,
           inRecord.quantity,
           parseFloat(`${inRecord.unitPrice || 0}`),
@@ -191,12 +240,12 @@ export class MaterialsInventoryService {
           outRecord?.quantity || '',
           parseFloat(`${outRecord.unitPrice || 0}`),
           parseFloat(`${outRecord.amount || 0}`),
-          '0',
-          '0',
-          '0',
-          outRecord?.agent,
-          outRecord?.issuanceNumber,
-          outRecord?.remark
+          balanceQuantity,
+          parseFloat(`${outRecord.unitPrice || 0}`),
+          calcNumber(balanceQuantity, outRecord.unitPrice || 0, 'multiply'),
+          outRecord?.agent || '',
+          outRecord?.issuanceNumber || '',
+          outRecord?.remark || ''
         ]);
       }
       sheet.getCell('A1').font = { size: HEADER_FONT_SIZE };
@@ -256,8 +305,12 @@ export class MaterialsInventoryService {
   }: MaterialsInventoryQueryDto): Promise<Pagination<MaterialsInventoryEntity>> {
     const queryBuilder = this.materialsInventoryRepository
       .createQueryBuilder('materialsInventory')
+      .leftJoin('materialsInventory.project', 'project')
+      .leftJoin('materialsInventory.product', 'product')
+      .leftJoin('product.unit', 'unit')
+      .leftJoin('product.company', 'company')
+      .addSelect(['project.name', 'product.name', 'unit.label', 'company.name'])
       .where('materialsInventory.isDelete = 0');
-
     return paginate<MaterialsInventoryEntity>(queryBuilder, {
       page,
       pageSize
@@ -283,78 +336,82 @@ export class MaterialsInventoryService {
   }
 
   /**
-   * 产品入库
+   * 产品入库后计算最新库存
+   * @param data 传入项目ID,产品ID和入库数量和单价
+   * @param manager 传入事务对象防止开启多重事务
    */
-  async inInventory(data: {
-    productId: number;
-    inQuantity: number;
-    unitPrice?: number;
-  }): Promise<void> {
-    const { productId, inQuantity, unitPrice } = data;
+  async inInventory(
+    data: {
+      projectId: number;
+      productId: number;
+      quantity: number;
+      unitPrice?: number;
+    },
+    manager: EntityManager
+  ): Promise<void> {
+    const { projectId, productId, quantity: inQuantity, unitPrice } = data;
 
-    await this.entityManager.transaction(async manager => {
-      const exsitedInventory = await this.materialsInventoryRepository.findOne({
-        where: { productId },
-        lock: { mode: 'pessimistic_write' } // 开启悲观行锁，防止脏读和修改
-      });
-
-      // 若不存在库存，直接新增库存
-      if (!exsitedInventory) {
-        await this.entityManager.transaction(async manager => {
-          if (exsitedInventory) {
-            await manager.insert(MaterialsInventoryEntity, {
-              productId,
-              unitPrice,
-              quantity: inQuantity
-            });
-          }
-        });
-        return;
-      }
-      // 若存在库存，则库存增加
-      let { quantity, id } = exsitedInventory;
-      const newQuantity = calcNumber(quantity || 0, inQuantity || 0, 'add');
-      if (isNaN(newQuantity)) {
-        throw new Error('库存数量不合法');
-      }
-      await manager.update(MaterialsInventoryEntity, id, {
-        quantity: newQuantity
-      });
+    const exsitedInventory = await manager.findOne(MaterialsInventoryEntity, {
+      where: { projectId, productId }, // 查出某个项目的某个产品的库存情况
+      lock: { mode: 'pessimistic_write' } // 开启悲观行锁，防止脏读和修改
     });
-  }
 
-  /**
-   * 产品入库
-   */
-  async outInventory(data: { productId: number; outQuantity: number }): Promise<void> {
-    const { productId, outQuantity } = data;
-
-    await this.entityManager.transaction(async manager => {
-      // 开启悲观行锁，防止脏读和修改
-      const inventory = await this.materialsInventoryRepository.findOne({
-        where: { productId },
-        lock: { mode: 'pessimistic_write' }
-      });
-      // 检查库存剩余
-      if (inventory.quantity < outQuantity) {
-        throw new BusinessException(ErrorEnum.INVENTORY_INSUFFICIENT);
-      }
-      // 库存充足，可以出库
-      let { quantity, id } = inventory;
-      const newQuantity = calcNumber(quantity || 0, outQuantity || 0, 'subtract');
-      if (isNaN(newQuantity)) {
-        throw new Error('库存数量不合法');
-      }
-      await manager.update(MaterialsInventoryEntity, id, {
-        quantity: newQuantity
+    // 若不存在库存，直接新增库存
+    if (!exsitedInventory) {
+      await manager.insert(MaterialsInventoryEntity, {
+        projectId,
+        productId,
+        unitPrice,
+        quantity: inQuantity
       });
+      return;
+    }
+    // 若该项目存在库存，则该项目该产品的库存增加
+    let { quantity, id } = exsitedInventory;
+    const newQuantity = calcNumber(quantity || 0, inQuantity || 0, 'add');
+    if (isNaN(newQuantity)) {
+      throw new Error('库存数量不合法');
+    }
+    await manager.update(MaterialsInventoryEntity, id, {
+      quantity: newQuantity
     });
   }
 
   /**
    * 产品出库
+   * @param data 传入产品id和入库数量和单价
+   * @param manager 传入事务对象防止开启多重事务
    */
+  async outInventory(
+    data: {
+      projectId: number;
+      productId: number;
+      quantity: number;
+      unitPrice?: number;
+    },
+    manager: EntityManager
+  ): Promise<void> {
+    const { projectId, productId, quantity: outQuantity } = data;
 
+    // 开启悲观行锁，防止脏读和修改
+    const inventory = await manager.findOne(MaterialsInventoryEntity, {
+      where: { projectId, productId },
+      lock: { mode: 'pessimistic_write' }
+    });
+    // 检查库存剩余
+    if (inventory.quantity < outQuantity) {
+      throw new BusinessException(ErrorEnum.INVENTORY_INSUFFICIENT);
+    }
+    // 若该项目的该产品库存充足，则该项目该产品的库存减少
+    let { quantity, id } = inventory;
+    const newQuantity = calcNumber(quantity || 0, outQuantity || 0, 'subtract');
+    if (isNaN(newQuantity)) {
+      throw new Error('库存数量不合法');
+    }
+    await manager.update(MaterialsInventoryEntity, id, {
+      quantity: newQuantity
+    });
+  }
   /**
    * 删除
    */
diff --git a/src/modules/product/product.dto.ts b/src/modules/product/product.dto.ts
index 4824c24..e8b4b08 100644
--- a/src/modules/product/product.dto.ts
+++ b/src/modules/product/product.dto.ts
@@ -8,6 +8,11 @@ export class ProductDto {
   @IsString()
   name: string;
 
+  @ApiProperty({ description: '产品备注' })
+  @IsOptional()
+  @IsString()
+  remark: string;
+
   @ApiProperty({ description: '单位(字典)' })
   @IsOptional()
   @IsNumber()
diff --git a/src/modules/product/product.entity.ts b/src/modules/product/product.entity.ts
index 0c6aa58..6b0ea0b 100644
--- a/src/modules/product/product.entity.ts
+++ b/src/modules/product/product.entity.ts
@@ -26,6 +26,15 @@ export class ProductEntity extends CommonEntity {
   @ApiProperty({ description: '产品名称' })
   name: string;
 
+  @Column({
+    name: 'remark',
+    type: 'varchar',
+    length: 255,
+    comment: '备注'
+  })
+  @ApiProperty({ description: '产品备注' })
+  remark: string;
+
   @Column({ name: 'is_delete', type: 'tinyint', default: 0, comment: '是否删除' })
   @ApiProperty({ description: '删除状态：0未删除，1已删除' })
   isDelete: number;
diff --git a/src/utils/tool.util.ts b/src/utils/tool.util.ts
index 9320ca9..5f8afbd 100644
--- a/src/utils/tool.util.ts
+++ b/src/utils/tool.util.ts
@@ -67,10 +67,10 @@ export function calcNumber(
       return add(bignumber(firstNumber), bignumber(secondNumber)).toNumber();
     case 'subtract':
       return subtract(bignumber(firstNumber), bignumber(secondNumber)).toNumber();
-    // case 'multiply':
-    //   return multiply(bignumber(firstNumber), bignumber(secondNumber));
-    // case 'divide':
-    //   return divide(bignumber(firstNumber), bignumber(secondNumber));
+    case 'multiply':
+      return (multiply(bignumber(firstNumber), bignumber(secondNumber)) as BigNumber).toNumber();
+    case 'divide':
+      return (divide(bignumber(firstNumber), bignumber(secondNumber)) as BigNumber).toNumber();
     default:
       return 0;
   }