diff --git a/src/api/erf/erf.js b/src/api/erf/erf.js
index 4316d5b..4d3b345 100644
--- a/src/api/erf/erf.js
+++ b/src/api/erf/erf.js
@@ -40,6 +40,11 @@ export const approveExpApply = data => createAPI(`/erf/expApply/approveExpApply`
  */
 export const getCurrentNodeCode = data => createAPI(`/erf/expApply/getCurrentNodeCode`, 'post', data)
 
+/**
+ * 保存申请单备注
+ */
+export const saveRemark = data => createAPI(`/erf/expApply/saveRemark`, 'post', data)
+
 /**
  * 撤回申请单
  */
diff --git a/src/views/modules/erf/expApplyList.vue b/src/views/modules/erf/expApplyList.vue
index 305d336..ad45915 100644
--- a/src/views/modules/erf/expApplyList.vue
+++ b/src/views/modules/erf/expApplyList.vue
@@ -411,6 +411,30 @@
         </div>
       </el-tab-pane>
 
+      <!-- Tab: 备注 -->
+      <el-tab-pane label="备注" name="remark">
+        <div v-if="currentRow.applyNo" style="padding: 16px;">
+          <el-input
+            type="textarea"
+            v-model="remarkText"
+            :rows="10"
+            placeholder="请输入备注内容"
+            style="width: 100%"
+          ></el-input>
+          <div style="margin-top: 12px; text-align: left;">
+            <el-button
+              type="primary"
+              size="small"
+              :loading="remarkSaving"
+              @click="saveRemarkHandle">保存备注</el-button>
+          </div>
+        </div>
+        <div v-else class="empty-tip">
+          <i class="el-icon-edit-outline" style="font-size: 40px; color: #C0C4CC; margin-bottom: 10px"></i>
+          <p style="font-size: 13px">请选择申请单填写备注</p>
+        </div>
+      </el-tab-pane>
+
     </el-tabs>
 
     <!-- 新增/编辑弹窗 -->
@@ -587,7 +611,7 @@
 </template>
 
 <script>
-import { searchExpApplyList, submitExpApply, deleteExpApply, withdrawExpApply, cancelExpApply, copyExpApply, getSubmitApprovers, getFlowStatus, getTriConfirmList, confirmSample } from '@/api/erf/erf'
+import { searchExpApplyList, submitExpApply, deleteExpApply, withdrawExpApply, cancelExpApply, copyExpApply, getSubmitApprovers, getFlowStatus, getTriConfirmList, confirmSample, saveRemark } from '@/api/erf/erf'
 import { getBuList } from '@/api/factory/site'
 import ExpApplyForm from './components/expApplyForm.vue'
 import ExpProjectDetail from './components/expProjectDetail.vue'
@@ -640,6 +664,10 @@ export default {
       // 当前选中行
       currentRow: {},
 
+      // 备注
+      remarkText: '',
+      remarkSaving: false,
+
       // Tab页签
       activeName: 'attachment',
 
@@ -1118,31 +1146,50 @@ export default {
       this.getDataList()
     },
 
+    /**
+     * 保存备注
+     */
+    saveRemarkHandle() {
+      if (!this.currentRow.applyNo) {
+        this.$message.warning('请先选择申请单')
+        return
+      }
+      this.remarkSaving = true
+      saveRemark({ applyNo: this.currentRow.applyNo, remark: this.remarkText }).then(({data}) => {
+        this.remarkSaving = false
+        if (data && data.code === 0) {
+          this.$message.success('备注保存成功')
+          this.getDataList('Y')
+          //this.currentRow.remark = this.remarkText
+        } else {
+          this.$message.error(data.msg || '保存失败')
+        }
+      }).catch(() => {
+        this.remarkSaving = false
+        this.$message.error('保存异常')
+      })
+    },
+
     /**
      * 行点击事件
      */
     handleRowClick(row) {
       this.currentRow = JSON.parse(JSON.stringify(row))
+      this.remarkText = row.remark || ''
       // 设置表格当前行高亮
       this.$nextTick(() => {
         this.$refs.dataTable.setCurrentRow(row)
       })
 
-      // 根据当前tab刷新对应的数据
+      // 根据当前tab刷新对应的数据，切换行后保持在当前tab
       if (this.activeName === 'approvalStatus') {
-        // 刷新审批状态和日志
         this.loadFlowStatus()
       } else if (this.activeName === 'triConfirm') {
-        // 刷新三方确认数据
         this.$nextTick(() => {
           if (this.$refs.triConfirm && this.$refs.triConfirm.loadProcessList) {
-            console.log('🔄 行切换，刷新三方确认数据')
             this.$refs.triConfirm.loadProcessList()
           }
         })
-      } else {
-        // 否则自动切换到项目详情tab
-        this.activeName = 'attachment'
       }
     },