diff --git a/src/api/points/rule.js b/src/api/points/rule.js
index 4d54ecf..a6ff9a5 100644
--- a/src/api/points/rule.js
+++ b/src/api/points/rule.js
@@ -20,9 +20,9 @@ export function getPointsRule(id) {
   return request({ url: '/business/points/rule/info', method: 'get', params: { id }})
 }
 
-// 根据隐患等级编码（general/major/critical）查询该等级下的根规则与子档位列表
-export function getRulesByLevel(hazardLevel) {
-  return request({ url: '/business/points/rule/rulesByLevel', method: 'get', params: { hazardLevel } })
+// 根据隐患等级编码（general/major/critical）查询该等级下的根规则与子档位列表；可传 deptId 指定厂区
+export function getRulesByLevel(params) {
+  return request({ url: '/business/points/rule/rulesByLevel', method: 'get', params })
 }
 
 // 积分试算：按厂区 + 隐患等级编码 + 档位模拟计算积分，返回 calculatedPoints
diff --git a/src/views/hazard/audit/components/AuditActionForm.vue b/src/views/hazard/audit/components/AuditActionForm.vue
index 8bcda28..89e74bb 100644
--- a/src/views/hazard/audit/components/AuditActionForm.vue
+++ b/src/views/hazard/audit/components/AuditActionForm.vue
@@ -414,10 +414,13 @@ export default {
       if (!level) {
         console.warn('[积分档位] level 为空，跳过查询，tierOptions 清空')
         this.tierOptions = []
+        this.applyTierFallback()
         return
       }
       this.tierLoading = true
-      getRulesByLevel(level).then(res => {
+      const params = { hazardLevel: level }
+      if (this.report.factoryDeptId) params.deptId = this.report.factoryDeptId
+      getRulesByLevel(params).then(res => {
         console.log('[积分档位] getRulesByLevel 原始返回 =', JSON.stringify(res))
         const data = (res && res.data) || res || {}
         console.log('[积分档位] 解析后的 data =', JSON.stringify(data))
@@ -429,15 +432,26 @@ export default {
           label: String(item.hazardCategory || item.ruleName || '').toUpperCase()
         }))
         console.log('[积分档位] 最终 tierOptions =', JSON.stringify(this.tierOptions))
+        this.applyTierFallback()
         // 档位列表到达后补一次试算，兼容只有 finalFlowLevelId、没有档位文本的历史数据。
         this.loadEstimatedPoints()
       }).catch((err) => {
         console.error('[积分档位] getRulesByLevel 请求失败 =', err)
         this.tierOptions = []
+        this.applyTierFallback()
       }).finally(() => {
         this.tierLoading = false
       })
     },
+    applyTierFallback() {
+      // 后端按厂区查不到档位列表时，用详情已存的档位兜底，避免下拉显示裸规则ID
+      if (this.tierOptions.length) return
+      if (!this.form.finalFlowLevelId) return
+      this.tierOptions = [{
+        id: this.form.finalFlowLevelId,
+        label: String(this.form.finalFlowLevel || this.form.finalFlowLevelId)
+      }]
+    },
     handleTierChange(value) {
       const item = this.tierOptions.find(option => String(option.id) === String(value))
       this.$set(this.form, 'finalFlowLevel', item ? item.label : '')