diff --git a/shared/rules.test.ts b/shared/rules.test.ts
index 1a64098..4a97264 100644
--- a/shared/rules.test.ts
+++ b/shared/rules.test.ts
@@ -16,6 +16,7 @@ import {
   ruleSetReferences,
   setRuleProviders,
   setRules,
+  subRuleSetReferences,
 } from './rules.ts'
 import type { ConfigObject } from '../vendor/config-editor/index.ts'
 
@@ -316,3 +317,17 @@ describe('清单格式与缓存路径', () => {
     expect(ruleProviderPathConflict(data, 'x', ruleProviderPath('x', 'yaml'))).toBeNull()
   })
 })
+
+describe('附加规则里的规则组引用', () => {
+  it('sub-rules 各表里的 RULE-SET 引用都认出来，别的表不误报', () => {
+    const data = {
+      'sub-rules': {
+        'patchbay:t1 附加': ['RULE-SET,ads,REJECT', 'MATCH,patchbay:t1'],
+        mine: ['RULE-SET,other,DIRECT'],
+      },
+    }
+    expect(subRuleSetReferences(data, 'ads')).toEqual(['RULE-SET,ads,REJECT'])
+    expect(subRuleSetReferences(data, 'ghost')).toEqual([])
+    expect(subRuleSetReferences({}, 'ads')).toEqual([])
+  })
+})
diff --git a/shared/rules.ts b/shared/rules.ts
index 6a2df02..e005932 100644
--- a/shared/rules.ts
+++ b/shared/rules.ts
@@ -168,6 +168,28 @@ export function ruleSetReferences(rules: string[], providerName: string): number
   return result
 }
 
+/**
+ * sub-rules 各表（含每路入站的附加规则）里引用这个规则组的规则原文。
+ * 删除规则组前和顶层的一起查——漏了的话删除会被内核重载拒掉，用户看到的
+ * 是一段原始解析错误而不是「谁在引用它」。
+ */
+export function subRuleSetReferences(data: ConfigObject, providerName: string): string[] {
+  const tables = data['sub-rules']
+  if (typeof tables !== 'object' || tables === null || Array.isArray(tables)) return []
+  const hits: string[] = []
+  for (const rules of Object.values(tables)) {
+    if (!Array.isArray(rules)) continue
+    for (const rule of rules) {
+      if (typeof rule !== 'string') continue
+      const parsed = parseRule(rule)
+      if (parsed.type.toUpperCase() === 'RULE-SET' && parsed.payload === providerName) {
+        hits.push(rule)
+      }
+    }
+  }
+  return hits
+}
+
 /** 配置里的 rule-providers 段。不是映射就当没有。 */
 export function ruleProvidersOf(data: ConfigObject): Record<string, ConfigObject> {
   const value = data['rule-providers']
diff --git a/web/views/RulesPage.vue b/web/views/RulesPage.vue
index 84b21c0..97beecb 100644
--- a/web/views/RulesPage.vue
+++ b/web/views/RulesPage.vue
@@ -23,6 +23,7 @@ import {
   rulesOf,
   setRuleProviders,
   setRules,
+  subRuleSetReferences,
 } from '@shared/rules.ts'
 import type { IniImportPlan, RuleIssue } from '@shared/rules.ts'
 import type { ConfigObject } from '../../vendor/config-editor/index.ts'
@@ -290,9 +291,14 @@ function onBlockedBackdrop(event: MouseEvent) {
 }
 
 function askRemoveProvider(name: string) {
-  const refs = ruleSetReferences(rules.value, name)
+  // 附加规则（sub-rules）里的引用也要查：漏了的话删除会被内核重载拒掉，
+  // 用户看到的是解析错误原文而不是「谁在引用它」
+  const refs = [
+    ...ruleSetReferences(rules.value, name).map((i) => rules.value[i]!),
+    ...subRuleSetReferences(props.data, name),
+  ]
   if (refs.length > 0) {
-    blockedProvider.value = { name, refs: refs.map((i) => rules.value[i]!) }
+    blockedProvider.value = { name, refs }
   } else {
     removingProvider.value = name
   }