diff --git a/src/api/erf/erf.js b/src/api/erf/erf.js
index 4f567a1..b6ebc5b 100644
--- a/src/api/erf/erf.js
+++ b/src/api/erf/erf.js
@@ -20,6 +20,11 @@ export const getExpApplyDetail = data => createAPI(`/erf/expApply/getExpApplyDet
  */
 export const saveExpApply = data => createAPI(`/erf/expApply/saveExpApply`, 'post', data)
 
+/**
+ * 获取PJM负责人列表（产品文档收美-PM角色）
+ */
+export const getPjmLeaderList = data => createAPI(`/erf/expApply/getPjmLeaderList`, 'post', data)
+
 /**
  * 下达申请单
  */
diff --git a/src/views/modules/erf/components/expApplyForm.vue b/src/views/modules/erf/components/expApplyForm.vue
index 1e95ed7..4fccf27 100644
--- a/src/views/modules/erf/components/expApplyForm.vue
+++ b/src/views/modules/erf/components/expApplyForm.vue
@@ -87,6 +87,26 @@
         </el-col>
 
         <el-col :span="12">
+          <el-form-item label="PJM负责人">
+            <el-select
+              v-model="saveHeaderData.pjmLeaderUserId"
+              :disabled="readonly"
+              clearable
+              filterable
+              placeholder="请选择PJM负责人（非必填）"
+              style="width: 100%"
+              @change="handlePjmLeaderChange">
+              <el-option
+                v-for="item in pjmLeaderList"
+                :key="item.userId"
+                :label="item.userDisplay || item.username"
+                :value="item.userId">
+              </el-option>
+            </el-select>
+          </el-form-item>
+        </el-col>
+
+        <el-col :span="24">
           <el-form-item label="试验目的" prop="purpose">
             <el-input
               v-model="saveHeaderData.purpose"
@@ -220,7 +240,7 @@
 </template>
 
 <script>
-import { saveExpApply } from '@/api/erf/erf'
+import { saveExpApply, getPjmLeaderList } from '@/api/erf/erf'
 import { getBuList } from '@/api/factory/site'
 import Chooselist from '@/views/modules/common/Chooselist'
 
@@ -243,6 +263,7 @@ export default {
   data() {
     return {
       buList: [],
+      pjmLeaderList: [],
       saveHeaderData: {
         applyNo: '',
         originalApplyNo: '',
@@ -257,6 +278,8 @@ export default {
         expectedFinishDate: '',
         projectLeaderName: this.$store.state.user.name,
         projectLeader: this.$store.state.user.userDisplay,
+        pjmLeaderUserId: null,
+        pjmLeaderName: '',
         contactMethod: '',
         processRequirement: '',
         creatorUserId: this.$store.state.user.id,
@@ -289,6 +312,25 @@ export default {
     }
   },
 
+  watch: {
+    'saveHeaderData.buNo'(newVal, oldVal) {
+      if (!newVal) {
+        this.saveHeaderData.pjmLeaderUserId = null
+        this.saveHeaderData.pjmLeaderName = ''
+        // BU为空时回退查询全部PJM负责人
+        this.loadPjmLeaderList('')
+        return
+      }
+      if (newVal !== oldVal) {
+        if (oldVal !== undefined && oldVal !== null && oldVal !== '') {
+          this.saveHeaderData.pjmLeaderUserId = null
+          this.saveHeaderData.pjmLeaderName = ''
+        }
+        this.loadPjmLeaderList(newVal)
+      }
+    }
+  },
+
   mounted() {
     this.loadBuList()
     if (this.applyData && this.applyData.applyNo) {
@@ -298,6 +340,8 @@ export default {
       }
       this.isEdit = true
     }
+    // 首次打开弹窗时也查询一次PJM负责人（BU为空时查询全量）
+    this.loadPjmLeaderList(this.saveHeaderData.buNo || '')
   },
 
   methods: {
@@ -316,6 +360,58 @@ export default {
       })
     },
 
+    /**
+     * 加载PJM负责人列表（产品文档收美-PM角色）
+     */
+    loadPjmLeaderList(buNo) {
+      getPjmLeaderList({ buNo: buNo || '' }).then(({data}) => {
+        if (data && data.code === 0) {
+          this.pjmLeaderList = data.list || []
+          this.ensurePjmLeaderOption()
+          if (this.saveHeaderData.pjmLeaderUserId && !this.saveHeaderData.pjmLeaderName) {
+            this.handlePjmLeaderChange(this.saveHeaderData.pjmLeaderUserId)
+          }
+        } else {
+          this.pjmLeaderList = []
+          this.$message.error(data.msg || '加载PJM负责人失败')
+        }
+      }).catch(() => {
+        this.pjmLeaderList = []
+        this.$message.error('加载PJM负责人异常')
+      })
+    },
+
+    /**
+     * 处理PJM负责人变更
+     */
+    handlePjmLeaderChange(userId) {
+      if (!userId) {
+        this.saveHeaderData.pjmLeaderName = ''
+        return
+      }
+      const selected = this.pjmLeaderList.find(item => item.userId === userId)
+      this.saveHeaderData.pjmLeaderName = selected
+        ? (selected.userDisplay || selected.username || '')
+        : (this.saveHeaderData.pjmLeaderName || '')
+    },
+
+    /**
+     * 编辑场景兜底：已选PJM负责人不在当前下拉项时补充显示
+     */
+    ensurePjmLeaderOption() {
+      if (!this.saveHeaderData.pjmLeaderUserId) {
+        return
+      }
+      const exist = this.pjmLeaderList.some(item => item.userId === this.saveHeaderData.pjmLeaderUserId)
+      if (!exist && this.saveHeaderData.pjmLeaderName) {
+        this.pjmLeaderList.push({
+          userId: this.saveHeaderData.pjmLeaderUserId,
+          username: this.saveHeaderData.pjmLeaderName,
+          userDisplay: this.saveHeaderData.pjmLeaderName
+        })
+      }
+    },
+
     /**
      * 获取表单数据（用于验证）
      */
diff --git a/src/views/modules/erf/expApplyList.vue b/src/views/modules/erf/expApplyList.vue
index a07f560..a6ae395 100644
--- a/src/views/modules/erf/expApplyList.vue
+++ b/src/views/modules/erf/expApplyList.vue
@@ -474,7 +474,7 @@
         :readonly="dialogReadonly">
       </exp-apply-form>
 
-      <el-footer style="height: 40px; margin-top: 40px; text-align: center">
+      <el-footer style="height: 40px; margin-top: 50px; text-align: center">
         <el-button type="primary" @click="saveApply" v-if="!dialogReadonly" :loading="saveLoading">
           {{ saveLoading ? '保存中...' : '保存' }}
         </el-button>