diff --git a/src/api/system/cost.js b/src/api/system/cost.js
new file mode 100644
index 0000000..fd802aa
--- /dev/null
+++ b/src/api/system/cost.js
@@ -0,0 +1,44 @@
+import request from '@/utils/request'
+
+// 查询零件成本列表
+export function listCost(query) {
+  return request({
+    url: '/system/cost/list',
+    method: 'get',
+    params: query
+  })
+}
+
+// 查询零件成本详细
+export function getCost(id) {
+  return request({
+    url: '/system/cost/' + id,
+    method: 'get'
+  })
+}
+
+// 新增零件成本
+export function addCost(data) {
+  return request({
+    url: '/system/cost',
+    method: 'post',
+    data: data
+  })
+}
+
+// 修改零件成本
+export function updateCost(data) {
+  return request({
+    url: '/system/cost',
+    method: 'put',
+    data: data
+  })
+}
+
+// 删除零件成本
+export function delCost(id) {
+  return request({
+    url: '/system/cost/' + id,
+    method: 'delete'
+  })
+}
diff --git a/src/views/system/cost/index.vue b/src/views/system/cost/index.vue
new file mode 100644
index 0000000..0d93791
--- /dev/null
+++ b/src/views/system/cost/index.vue
@@ -0,0 +1,393 @@
+<template>
+  <div class="app-container">
+    <h3 class="page-title"><i class="el-icon-coin"></i> 零件成本查询</h3>
+    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
+      <el-form-item label="物料编码" prop="materialCode">
+        <el-input
+          v-model="queryParams.materialCode"
+          placeholder="请输入物料编码"
+          clearable
+          @keyup.enter.native="handleQuery"
+        />
+      </el-form-item>
+      <el-form-item label="物料名称" prop="materialName">
+        <el-input
+          v-model="queryParams.materialName"
+          placeholder="请输入物料名称"
+          clearable
+          @keyup.enter.native="handleQuery"
+        />
+      </el-form-item>
+      <el-form-item label="成本价" prop="costPrice">
+        <el-input
+          v-model="queryParams.costPrice"
+          placeholder="请输入成本价"
+          clearable
+          @keyup.enter.native="handleQuery"
+        />
+      </el-form-item>
+      <el-form-item label="创建日期" prop="createDate">
+        <el-date-picker clearable
+          v-model="queryParams.createDate"
+          type="date"
+          value-format="yyyy-MM-dd"
+          placeholder="请选择创建日期">
+        </el-date-picker>
+      </el-form-item>
+      <el-form-item label="车间" prop="workshop">
+        <el-input
+          v-model="queryParams.workshop"
+          placeholder="请输入车间"
+          clearable
+          @keyup.enter.native="handleQuery"
+        />
+      </el-form-item>
+      <el-form-item label="单位" prop="unit">
+        <el-input
+          v-model="queryParams.unit"
+          placeholder="请输入单位"
+          clearable
+          @keyup.enter.native="handleQuery"
+        />
+      </el-form-item>
+      <el-form-item label="仓库" prop="warehouse">
+        <el-input
+          v-model="queryParams.warehouse"
+          placeholder="请输入仓库"
+          clearable
+          @keyup.enter.native="handleQuery"
+        />
+      </el-form-item>
+      <el-form-item>
+        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
+        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
+      </el-form-item>
+    </el-form>
+
+    <!-- 物料多选 + 系数 + 生成报价单 -->
+    <el-card class="quote-card" shadow="never">
+      <div class="quote-row">
+        <div class="quote-field">
+          <label class="quote-label">物料搜索</label>
+          <!-- 搜索模式切换：按编码/按名称 -->
+          <el-radio-group v-model="searchMode" size="mini">
+            <el-radio-button label="code">按编码</el-radio-button>
+            <el-radio-button label="name">按名称</el-radio-button>
+          </el-radio-group>
+
+          <el-select v-model="selectedMaterials" multiple filterable remote reserve-keyword :placeholder="searchMode === 'code' ? '按编码搜索' : '按名称搜索'"
+                     :remote-method="remoteSearchMaterial" :loading="materialLoading" value-key="materialCode" style="min-width: 420px;">
+            <el-option
+              v-for="item in materialOptions"
+              :key="item.materialCode"
+              :label="item.materialCode + ' - ' + item.materialName"
+              :value="item"
+            />
+          </el-select>
+        </div>
+        <div class="quote-field">
+          <label class="quote-label">系数</label>
+          <el-input-number v-model="coefficient" :min="0" :step="0.01" controls-position="right" />
+        </div>
+        <div class="quote-actions">
+          <el-button type="primary" size="mini" icon="el-icon-document" @click="handleGenerateQuote">生成售后报价单</el-button>
+          <span class="quote-total">总计：{{ formattedTotal }}</span>
+        </div>
+      </div>
+      <div v-if="selectedMaterials.length" class="selected-tags">
+        <el-tag
+          v-for="m in selectedMaterials"
+          :key="m.materialCode"
+          type="info"
+          closable
+          @close="removeSelected(m)"
+        >{{ m.materialCode }} - {{ m.materialName }}</el-tag>
+      </div>
+    </el-card>
+
+    <el-row :gutter="10" class="mb8">
+      <el-col :span="1.5">
+        <el-button
+          type="warning"
+          plain
+          icon="el-icon-download"
+          size="mini"
+          @click="handleExport"
+          v-hasPermi="['system:cost:export']"
+        >导出</el-button>
+      </el-col>
+      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
+    </el-row>
+
+    <el-table
+      v-loading="loading"
+      :data="costList"
+      stripe
+      border
+      size="mini"
+      highlight-current-row
+      :header-cell-style="headerCellStyle"
+      :cell-style="cellStyle"
+    >
+      <el-table-column label="物料编码" align="center" prop="materialCode" />
+      <el-table-column label="物料名称" align="center" prop="materialName" />
+      <el-table-column label="成本价" align="right" prop="costPrice" width="140">
+        <template slot-scope="scope">
+          <span>{{ scope.row.costPrice }}</span>
+        </template>
+      </el-table-column>
+      <el-table-column label="创建日期" align="center" prop="createDate" width="180">
+        <template slot-scope="scope">
+          <span>{{ parseTime(scope.row.createDate, '{y}-{m}-{d}') }}</span>
+        </template>
+      </el-table-column>
+      <el-table-column label="车间" align="center" prop="workshop" />
+      <el-table-column label="单位" align="center" prop="unit" />
+      <el-table-column label="仓库" align="center" prop="warehouse" />
+      <el-table-column label="规格型号" align="center" prop="specificationModel" />
+    </el-table>
+
+    <pagination
+      v-show="total>0"
+      :total="total"
+      :page.sync="queryParams.pageNum"
+      :limit.sync="queryParams.pageSize"
+      @pagination="getList"
+    />
+
+    <!-- 售后报价单预览/导出 -->
+    <el-dialog title="售后报价单" :visible.sync="quoteDialogVisible" width="720px">
+      <el-table :data="selectedMaterials" size="mini" border style="margin-bottom: 8px;">
+        <el-table-column label="物料编码" prop="materialCode" align="center" />
+        <el-table-column label="物料名称" prop="materialName" />
+        <el-table-column label="成本价" prop="costPrice" align="right" width="140">
+          <template slot-scope="scope">
+            <span>{{ scope.row.costPrice }}</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="系数" align="center" width="100">
+          <template>
+            <span>{{ coefficient }}</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="小计" align="right" width="140">
+          <template slot-scope="scope">
+            <span>{{ (toNumber(scope.row.costPrice) * toNumber(coefficient)).toString() }}</span>
+          </template>
+        </el-table-column>
+      </el-table>
+      <div class="quote-summary">
+        <span>合计：</span>
+        <strong>{{ formattedTotal }}</strong>
+      </div>
+      <span slot="footer" class="dialog-footer">
+        <el-button @click="quoteDialogVisible = false">取消</el-button>
+        <el-button type="primary" @click="exportQuoteCSV">导出CSV</el-button>
+      </span>
+    </el-dialog>
+  </div>
+</template>
+
+<script>
+import { listCost } from "@/api/system/cost";
+
+export default {
+  name: "Cost",
+  data() {
+    return {
+      // 遮罩层
+      loading: true,
+      // 显示搜索条件
+      showSearch: true,
+      // 总条数
+      total: 0,
+      // 零件成本表格数据
+      costList: [],
+      // 查询参数
+      queryParams: {
+        pageNum: 1,
+        pageSize: 10,
+        materialCode: undefined,
+        materialName: undefined,
+        costPrice: undefined,
+        createDate: undefined,
+        workshop: undefined,
+        unit: undefined,
+        warehouse: undefined,
+        specificationModel: undefined
+      },
+      // 物料选择
+      selectedMaterials: [],
+      materialOptions: [],
+      materialLoading: false,
+      // 搜索模式：code 按编码，name 按名称
+      searchMode: 'code',
+      // 系数
+      coefficient: 1,
+      // 报价单对话框
+      quoteDialogVisible: false
+    };
+  },
+  computed: {
+    selectedTotal() {
+      const sum = this.selectedMaterials.reduce((acc, cur) => acc + this.toNumber(cur.costPrice), 0);
+      return sum * this.toNumber(this.coefficient);
+    },
+    formattedTotal() {
+      return this.selectedTotal.toString();
+    }
+  },
+  created() {
+    this.getList();
+  },
+  methods: {
+    /** 查询零件成本列表 */
+    getList() {
+      this.loading = true;
+      listCost(this.queryParams).then(response => {
+        this.costList = response.rows;
+        this.total = response.total;
+        this.loading = false;
+      });
+    },
+    /** 搜索按钮操作 */
+    handleQuery() {
+      this.queryParams.pageNum = 1;
+      this.getList();
+    },
+    /** 重置按钮操作 */
+    resetQuery() {
+      this.resetForm("queryForm");
+      this.handleQuery();
+    },
+    /** 导出按钮操作 */
+    handleExport() {
+      this.download('system/cost/export', {
+        ...this.queryParams
+      }, `cost_${new Date().getTime()}.xlsx`)
+    },
+    headerCellStyle() {
+      return { background: '#f7f8fa', color: '#606266', fontWeight: 600 };
+    },
+    cellStyle({ column }) {
+      if (column && column.property === 'costPrice') {
+        return { textAlign: 'right' };
+      }
+      return {};
+    },
+    // --- 物料搜索与选择 ---
+    remoteSearchMaterial(query) {
+      if (!query) {
+        this.materialOptions = [];
+        return;
+      }
+      this.materialLoading = true;
+      // 根据搜索模式仅传一个字段：materialCode 或 materialName
+      const params = { pageNum: 1, pageSize: 20 };
+      if (this.searchMode === 'code') {
+        params.materialCode = query;
+      } else {
+        params.materialName = query;
+      }
+      listCost(params).then(res => {
+        this.materialOptions = res.rows || [];
+      }).finally(() => {
+        this.materialLoading = false;
+      })
+    },
+    removeSelected(item) {
+      this.selectedMaterials = this.selectedMaterials.filter(m => m.materialCode !== item.materialCode);
+    },
+    toNumber(v) {
+      const n = Number(v);
+      return isNaN(n) ? 0 : n;
+    },
+    // --- 生成售后报价单 ---
+    handleGenerateQuote() {
+      if (!this.selectedMaterials.length) {
+        this.$message.warning('请先选择至少一个物料');
+        return;
+      }
+      if (this.toNumber(this.coefficient) < 0) {
+        this.$message.warning('系数不能为负数');
+        return;
+      }
+      this.quoteDialogVisible = true;
+    },
+    exportQuoteCSV() {
+      const rows = [];
+      rows.push(['物料编码', '物料名称', '成本价', '系数', '小计']);
+      this.selectedMaterials.forEach(m => {
+        const subtotal = this.toNumber(m.costPrice) * this.toNumber(this.coefficient);
+        rows.push([m.materialCode, m.materialName, m.costPrice, this.coefficient, subtotal]);
+      });
+      rows.push(['总计', '', '', this.coefficient, this.selectedTotal]);
+      const csv = rows.map(r => r.map(v => '"' + String(v).replace(/"/g, '""') + '"').join(',')).join('\r\n');
+      const blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
+      const link = document.createElement('a');
+      link.href = URL.createObjectURL(blob);
+      link.download = `售后报价单_${new Date().toISOString().slice(0,19).replace(/[:T]/g,'-')}.csv`;
+      document.body.appendChild(link);
+      link.click();
+      document.body.removeChild(link);
+      URL.revokeObjectURL(link.href);
+      this.$message.success('CSV 已导出');
+      this.quoteDialogVisible = false;
+    }
+  }
+};
+</script>
+
+<style scoped>
+.page-title {
+  margin: 0 0 12px;
+  font-size: 16px;
+  font-weight: 600;
+  display: flex;
+  align-items: center;
+}
+.page-title .el-icon-coin {
+  margin-right: 8px;
+  color: #409EFF;
+}
+.mb8 {
+  margin-bottom: 8px;
+}
+.el-table .cell {
+  padding: 6px 8px;
+}
+.quote-card {
+  margin-bottom: 12px;
+}
+.quote-row {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+.quote-field {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+.quote-label {
+  font-size: 12px;
+  color: #666;
+}
+.quote-actions {
+  margin-left: auto;
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+.quote-total {
+  font-weight: 600;
+  color: #333;
+}
+.selected-tags {
+  margin-top: 8px;
+}
+.selected-tags .el-tag {
+  margin-right: 6px;
+  margin-bottom: 6px;
+}
+</style>