diff --git a/inventory-backend/app/services/bom_service.py b/inventory-backend/app/services/bom_service.py
index f556103..f6a5b05 100644
--- a/inventory-backend/app/services/bom_service.py
+++ b/inventory-backend/app/services/bom_service.py
@@ -320,13 +320,28 @@ class BomService:
         parent_material = MaterialBase.query.get(parent_id)
 
         children = []
+
+        # ★ 子件若本身是"自制件"（也是某 BOM 的父件），带出它的 BOM 编号与最新版本号（仅展示识别用）
+        child_self_bom = {}
+        self_ids = [bom.child_id for bom, _, _ in rows if bom.child_id]
+        if self_ids:
+            _self_q = (db.session.query(BomTable.parent_id, BomTable.bom_no, BomTable.version)
+                       .filter(BomTable.parent_id.in_(self_ids))
+                       .order_by(BomTable.parent_id, BomTable.id.desc()).all())
+            for _pid, _no, _ver in _self_q:
+                if _pid not in child_self_bom:
+                    child_self_bom[_pid] = {'bom_no': _no, 'version': _ver}
+
         for bom, child_name, child_spec in rows:
+            _ref = child_self_bom.get(bom.child_id) or {}
             children.append({
                 'child_id': bom.child_id,
                 'child_name': child_name or '[已删除物料]',
                 'child_spec': child_spec or '',
                 'dosage': float(bom.dosage) if bom.dosage else 0.0,
-                'remark': bom.remark or ''
+                'remark': bom.remark or '',
+                'child_bom_no': _ref.get('bom_no', ''),
+                'child_bom_version': _ref.get('version', '')
             })
 
         result = {
diff --git a/inventory-web/src/views/bom/BomManage.vue b/inventory-web/src/views/bom/BomManage.vue
index 8469075..89279ae 100644
--- a/inventory-web/src/views/bom/BomManage.vue
+++ b/inventory-web/src/views/bom/BomManage.vue
@@ -196,6 +196,10 @@
                     style="font-size: 16px; padding: 4px;"
                   />
                 </el-tooltip>
+                <!-- ★ 自制件子件：显示其对应 BOM 版本（仅识别用） -->
+                <el-tag v-if="row.child_bom_version" size="small" type="warning" style="margin-left: 4px;">
+                  自制{{ row.child_bom_version }}
+                </el-tag>
               </div>
             </template>
           </el-table-column>
@@ -290,6 +294,7 @@ interface ChildRow {
   material_spec: string
   dosage: number
   remark: string
+  child_bom_version?: string   // 自制件子件对应的 BOM 版本（仅展示识别）
 }
 
 const originalDraftHash = ref('')
@@ -649,7 +654,8 @@ const executeSaveDraftRequest = async (targetBomNo: string) => {
         .map(child => ({
             child_id: child.child_id,
             dosage: child.dosage,
-            remark: child.remark || ''
+            remark: child.remark || '',
+        child_bom_version: child.child_bom_version || ''
         }))
 
     saving.value = true
@@ -683,7 +689,8 @@ const restoreDraftToForm = (draftData: any) => {
         material_name: child.child_name || '',
         material_spec: child.child_spec || '',
         dosage: child.dosage,
-        remark: child.remark || ''
+        remark: child.remark || '',
+        child_bom_version: child.child_bom_version || ''
     }))
 
     if (draftData.parent_id) {
@@ -800,7 +807,8 @@ const handleSaveAs = async (row: any) => {
         material_name: child.child_name || '未知物料',
         material_spec: child.child_spec || '',
         dosage: child.dosage,
-        remark: child.remark || ''
+        remark: child.remark || '',
+        child_bom_version: child.child_bom_version || ''
     }))
     if (raw.parent_id) {
         form.parent_id = raw.parent_id
@@ -836,7 +844,8 @@ const loadDetail = async (bomNo: string, version: string) => {
         material_name: child.child_name || '未知物料',
         material_spec: child.child_spec || '',
         dosage: child.dosage,
-        remark: child.remark || ''
+        remark: child.remark || '',
+        child_bom_version: child.child_bom_version || ''
       }))
 
       if (data.parent_id) {
diff --git a/inventory-web/src/views/borrow/apply/index.vue b/inventory-web/src/views/borrow/apply/index.vue
index 292b9d0..f1bfa2a 100644
--- a/inventory-web/src/views/borrow/apply/index.vue
+++ b/inventory-web/src/views/borrow/apply/index.vue
@@ -274,7 +274,7 @@
           <tr v-for="(row, idx) in bomDetailList" :key="idx">
             <td>{{ idx + 1 }}</td>
             <td>{{ row.name }}</td>
-            <td>{{ row.sku }}</td>
+            <td>{{ row.sku }}<span v-if="row.child_bom_version" style="color:#666; font-size:11px;">（自制 {{ row.child_bom_version }}）</span></td>
             <td>{{ row.need }}</td>
             <td>{{ row.available }}</td>
             <td>{{ row.shortage > 0 ? row.shortage : '-' }}</td>
@@ -304,7 +304,7 @@
             <tr v-for="(row, idx) in bomDetailList.filter(i => i.shortage > 0)" :key="idx">
               <td>{{ idx + 1 }}</td>
               <td>{{ row.name }}</td>
-              <td>{{ row.sku }}</td>
+              <td>{{ row.sku }}<span v-if="row.child_bom_version" style="color:#666; font-size:11px;">（自制 {{ row.child_bom_version }}）</span></td>
               <td>{{ row.shortage }}</td>
               <td></td>
               <td></td>
@@ -610,7 +610,8 @@ const bomDetailList = computed(() => {
           sku: bomItem.child_sku || bomItem.sku || '-',
           need: totalNeed,
           available: stock,
-          shortage
+          shortage,
+          child_bom_version: bomItem.child_bom_version || ''
         }
       })
       .sort((a, b) => {
diff --git a/inventory-web/src/views/outbound/Selection.vue b/inventory-web/src/views/outbound/Selection.vue
index a664f89..e9aafd8 100644
--- a/inventory-web/src/views/outbound/Selection.vue
+++ b/inventory-web/src/views/outbound/Selection.vue
@@ -280,7 +280,7 @@
           <tr v-for="(row, idx) in bomDetailList" :key="idx">
             <td>{{ idx + 1 }}</td>
             <td>{{ row.name }}</td>
-            <td>{{ row.sku }}</td>
+            <td>{{ row.sku }}<span v-if="row.child_bom_version" style="color:#666; font-size:11px;">（自制 {{ row.child_bom_version }}）</span></td>
             <td>{{ row.need }}</td>
             <td>{{ row.available }}</td>
             <td>{{ row.shortage > 0 ? row.shortage : '-' }}</td>
@@ -310,7 +310,7 @@
             <tr v-for="(row, idx) in bomDetailList.filter(i => i.shortage > 0)" :key="idx">
               <td>{{ idx + 1 }}</td>
               <td>{{ row.name }}</td>
-              <td>{{ row.sku }}</td>
+              <td>{{ row.sku }}<span v-if="row.child_bom_version" style="color:#666; font-size:11px;">（自制 {{ row.child_bom_version }}）</span></td>
               <td>{{ row.shortage }}</td>
               <td></td>
               <td></td>
@@ -632,7 +632,8 @@ const bomDetailList = computed(() => {
           sku: bomItem.child_spec || bomItem.spec_model || '-',
           need: totalNeed,
           available: stock,
-          shortage
+          shortage,
+          child_bom_version: bomItem.child_bom_version || ''
         }
       })
       .sort((a, b) => {