diff --git a/src/components/inventory/StockListTable.vue b/src/components/inventory/StockListTable.vue
index a68fd1ae..b9944fa0 100644
--- a/src/components/inventory/StockListTable.vue
+++ b/src/components/inventory/StockListTable.vue
@@ -1,6 +1,58 @@
 <template>
   <div>
-    <el-table :data="stockList" style="width: 100%" v-loading="loading">
+    <el-table
+      :data="stockList"
+      style="width: 100%"
+      v-loading="loading"
+      row-key="raw_material_id"
+      @expand-change="handleExpandChange"
+      @row-click="handleRowClick"
+    >
+      <el-table-column type="expand">
+        <template #default="props">
+          <div style="padding: 10px 20px;">
+            <h4 style="margin-bottom: 16px;">历史操作记录 ({{ props.row.raw_material_name }})</h4>
+            <el-table :data="props.row.stock_logs" border v-loading="props.row.stock_log_loading">
+              <el-table-column prop="happened_at" label="操作时间" width="180">
+                <template #default="scope">
+                  {{ formatRFC3339(scope.row.happened_at) }}
+                </template>
+              </el-table-column>
+              <el-table-column prop="source_type" label="操作类型" width="120">
+                <template #default="scope">
+                  {{ getStockLogSourceTypeLabel(scope.row.source_type) }}
+                </template>
+              </el-table-column>
+              <el-table-column prop="change_amount" label="变动数量" width="120">
+                <template #default="scope">
+                  {{ formatChangeAmount(scope.row.change_amount) }}
+                </template>
+              </el-table-column>
+              <el-table-column prop="before_quantity" label="变动前库存" width="120">
+                <template #default="scope">
+                  {{ formatWeight(scope.row.before_quantity) }}
+                </template>
+              </el-table-column>
+              <el-table-column prop="after_quantity" label="变动后库存" width="120">
+                <template #default="scope">
+                  {{ formatWeight(scope.row.after_quantity) }}
+                </template>
+              </el-table-column>
+              <el-table-column prop="remarks" label="备注"></el-table-column>
+            </el-table>
+            <el-pagination
+              v-if="props.row.stock_log_pagination && props.row.stock_log_pagination.total > 0"
+              style="margin-top: 20px;"
+              :current-page="props.row.stock_log_pagination.page"
+              :page-size="props.row.stock_log_pagination.page_size"
+              :total="props.row.stock_log_pagination.total"
+              layout="total, sizes, prev, pager, next, jumper"
+              @size-change="(size) => handleStockLogSizeChange(props.row, size)"
+              @current-change="(page) => handleStockLogCurrentChange(props.row, page)"
+            ></el-pagination>
+          </div>
+        </template>
+      </el-table-column>
       <el-table-column prop="raw_material_name" label="原料名称"></el-table-column>
       <el-table-column prop="stock" label="当前库存">
         <template #default="scope">
@@ -36,10 +88,10 @@
 </template>
 
 <script>
-import { ref, onMounted, watch } from 'vue';
+import { ref, onMounted, watch, nextTick } from 'vue';
 import { InventoryApi } from '../../api/inventory';
 import { ElMessage } from 'element-plus';
-import { formatRFC3339, formatWeight } from '../../utils/format';
+import { formatRFC3339, formatWeight, formatChangeAmount } from '../../utils/format'; // 导入 formatChangeAmount
 import { getStockLogSourceTypeLabel } from '../../enums'; // 导入 getStockLogSourceTypeLabel
 
 export default {
@@ -64,6 +116,9 @@ export default {
       total: 0,
     });
 
+    // el-table 的引用，用于控制行的展开/折叠
+    const mainTable = ref(null);
+
     const fetchStockList = async (filter = props.stockFilter, rawMaterialName = props.searchRawMaterialName) => {
       loading.value = true;
       try {
@@ -78,7 +133,17 @@ export default {
           params.raw_material_name = rawMaterialName;
         }
         const res = await InventoryApi.getCurrentStockList(params);
-        stockList.value = res.data.list;
+        // 初始化 stock_logs 和 stock_log_pagination
+        stockList.value = res.data.list.map(item => ({
+          ...item,
+          stock_logs: [], // 存储历史操作记录
+          stock_log_loading: false, // 历史操作记录的加载状态
+          stock_log_pagination: { // 历史操作记录的分页信息
+            page: 1,
+            page_size: 10,
+            total: 0,
+          },
+        }));
         pagination.value.total = res.data.pagination.total;
       } catch (error) {
         ElMessage.error('获取库存列表失败');
@@ -102,6 +167,78 @@ export default {
       emit('adjust-stock', row); // 只传递行数据
     };
 
+    /**
+     * 处理行展开/折叠事件
+     * @param {object} row - 当前行数据
+     * @param {Array<object>} expandedRows - 所有已展开的行数据
+     */
+    const handleExpandChange = async (row, expandedRows) => {
+      const isExpanded = expandedRows.some(r => r.raw_material_id === row.raw_material_id);
+      // 仅在展开时且数据未加载时才请求
+      if (isExpanded) {
+        // 确保每次展开都重新加载第一页数据，或者根据当前分页状态加载
+        // 如果是第一次展开，或者用户手动切换了分页，则需要重新获取
+        await fetchStockLogs(row);
+      }
+    };
+
+    /**
+     * 获取指定原料的历史操作记录
+     * @param {object} row - 当前原料行数据
+     */
+    const fetchStockLogs = async (row) => {
+      row.stock_log_loading = true;
+      try {
+        const params = {
+          raw_material_id: row.raw_material_id,
+          page: row.stock_log_pagination.page,
+          page_size: row.stock_log_pagination.page_size,
+          order_by: 'happened_at DESC', // 按时间倒序
+        };
+        const res = await InventoryApi.getStockLogList(params);
+        if (res.data) {
+          row.stock_logs = res.data.list;
+          row.stock_log_pagination.total = res.data.pagination.total;
+        }
+      } catch (error) {
+        console.error('获取库存历史操作记录失败:', error);
+        ElMessage.error('获取库存历史操作记录失败');
+      } finally {
+        row.stock_log_loading = false;
+      }
+    };
+
+    /**
+     * 处理历史操作记录分页的每页大小变化
+     * @param {object} row - 当前原料行数据
+     * @param {number} size - 新的每页大小
+     */
+    const handleStockLogSizeChange = async (row, size) => {
+      row.stock_log_pagination.page_size = size;
+      row.stock_log_pagination.page = 1; // 重置页码到第一页
+      await fetchStockLogs(row);
+    };
+
+    /**
+     * 处理历史操作记录分页的当前页码变化
+     * @param {object} row - 当前原料行数据
+     * @param {number} page - 新的页码
+     */
+    const handleStockLogCurrentChange = async (row, page) => {
+      row.stock_log_pagination.page = page;
+      await fetchStockLogs(row);
+    };
+
+    // 处理行点击事件，用于切换行的展开状态
+    const handleRowClick = (row, column) => {
+      // 如果点击的是操作列，则不执行任何操作
+      if (column && column.label === '操作') {
+        return;
+      }
+      // 否则，切换行的展开状态
+      mainTable.value.toggleRowExpansion(row);
+    };
+
     onMounted(() => {
       fetchStockList();
     });
@@ -125,13 +262,19 @@ export default {
       stockList,
       loading,
       pagination,
+      mainTable, // 暴露 mainTable ref
       handleSizeChange,
       handleCurrentChange,
       formatRFC3339,
       formatWeight,
+      formatChangeAmount, // 暴露 formatChangeAmount
       handleAdjust,
-      getStockLogSourceTypeLabel, // 暴露辅助函数给模板
+      getStockLogSourceTypeLabel,
+      handleExpandChange,
+      handleStockLogSizeChange,
+      handleStockLogCurrentChange,
+      handleRowClick,
     };
   },
 };
-</script>
+</script>
\ No newline at end of file
diff --git a/src/utils/format.js b/src/utils/format.js
index dc86c228..0ea2a565 100644
--- a/src/utils/format.js
+++ b/src/utils/format.js
@@ -34,5 +34,25 @@ export function formatWeight(grams) {
   }
 }
 
+/**
+ * 格式化库存变动数量，显示正负号和单位 (kg 或 g)
+ * @param {number} changeAmount - 变动数量，单位为克 (正数入库，负数出库)
+ * @returns {string} - 格式化后的变动数量字符串 (例如 "+1.5 kg", "-500 g")
+ */
+export function formatChangeAmount(changeAmount) {
+  if (typeof changeAmount !== 'number' || isNaN(changeAmount)) {
+    return '--';
+  }
+
+  const sign = changeAmount > 0 ? '+' : '';
+  const absoluteAmount = Math.abs(changeAmount);
+
+  if (absoluteAmount >= 1000) {
+    return sign + (absoluteAmount / 1000).toFixed(2) + ' kg';
+  } else {
+    return sign + absoluteAmount + ' g';
+  }
+}
+
 // 你未来还可以添加其他全局格式化函数
-// export function formatCurrency(number) { ... }
+// export function formatCurrency(number) { ... }
\ No newline at end of file