diff --git a/src/content/components/config-panel.ts b/src/content/components/config-panel.ts
index e7b3cfb..a692ab0 100644
--- a/src/content/components/config-panel.ts
+++ b/src/content/components/config-panel.ts
@@ -11,6 +11,7 @@ import {
   type RulePresetRecord,
 } from '../../types/rule-preset';
 import { I18nService } from '../../utils/i18n';
+import { buildRulePresetSummary, isRulePresetConfigValid } from '../../utils/rule-presets';
 
 /**
  * Config Panel Component
@@ -225,6 +226,10 @@ export class ConfigPanel extends LitElement {
   }
 
   private handleApplyPreset(record: RulePresetRecord): void {
+    if (!isRulePresetConfigValid(record.config)) {
+      return;
+    }
+
     this.dispatchEvent(
       new CustomEvent('apply-rule-preset', {
         detail: { presetId: record.id, source: record.source },
@@ -818,16 +823,26 @@ export class ConfigPanel extends LitElement {
 
   private renderPresetItem(record: RulePresetRecord, deletable: boolean) {
     const summary = this.buildPresetSummary(record);
+    const isValid = isRulePresetConfigValid(record.config);
     return html`
-      <div class="preset-item" data-preset-id=${record.id}>
+      <div class="preset-item ${isValid ? '' : 'is-invalid'}" data-preset-id=${record.id}>
         <div class="preset-content">
-          <div class="preset-name">${record.name || summary}</div>
+          <div class="preset-name">
+            ${record.name || summary}
+            ${isValid
+              ? ''
+              : html`<span class="preset-invalid-badge">${I18nService.t('rule_preset_invalid_badge')}</span>`}
+          </div>
           <div class="preset-summary">${summary}</div>
+          ${isValid
+            ? ''
+            : html`<div class="preset-invalid-hint">${I18nService.t('rule_preset_invalid_hint')}</div>`}
         </div>
         <div class="preset-actions">
           <button
             class="text-action-button"
             data-role="apply-rule-preset"
+            ?disabled=${!isValid}
             @click=${() => this.handleApplyPreset(record)}
           >
             ${I18nService.t('rule_preset_apply_button')}
@@ -849,24 +864,7 @@ export class ConfigPanel extends LitElement {
   }
 
   private buildPresetSummary(record: RulePresetRecord): string {
-    switch (record.config.type) {
-      case 'replace':
-        return `${I18nService.t('rule_replace')}: ${String(record.config.params.search || '')} → ${String(record.config.params.replace || '')}`;
-      case 'regex':
-        return `${I18nService.t('rule_regex')}: ${String(record.config.params.pattern || '')}`;
-      case 'prefix':
-        return `${I18nService.t('rule_prefix')}: ${String(record.config.params.prefix || '')}`;
-      case 'suffix':
-        return `${I18nService.t('rule_suffix')}: ${String(record.config.params.suffix || '')}`;
-      case 'numbering':
-        return `${I18nService.t('rule_numbering')}: ${String(record.config.params.format || '{num}')}`;
-      case 'sanitize':
-        return `${I18nService.t('rule_sanitize')}: ${String(record.config.params.removeChars || I18nService.t('param_remove_illegal'))}`;
-      case 'episodeExtract':
-        return `${I18nService.t('rule_episode_extract')}: ${String(record.config.params.template || '{prefix}.S{season}E{episode}{ext}')}`;
-      default:
-        return record.config.type;
-    }
+    return buildRulePresetSummary(record.config);
   }
 
   private renderEpisodeExtractAssist() {
@@ -1697,14 +1695,32 @@ export class ConfigPanel extends LitElement {
       border-top: 1px solid var(--cdr-border, #f0f0f0);
     }
 
+    .preset-item.is-invalid {
+      opacity: 0.88;
+    }
+
     .preset-summary,
     .preset-empty,
     .assist-sample-name,
-    .assist-warning {
+    .assist-warning,
+    .preset-invalid-hint {
       font-size: 12px;
       color: var(--cdr-text-secondary, #595959);
     }
 
+    .preset-invalid-badge {
+      display: inline-flex;
+      align-items: center;
+      margin-left: 6px;
+      padding: 2px 6px;
+      border-radius: 999px;
+      background: var(--cdr-warning-bg, #fff7e6);
+      border: 1px solid var(--cdr-warning-border, #ffd591);
+      color: var(--cdr-warning-text, #fa8c16);
+      font-size: 11px;
+      font-weight: 500;
+    }
+
     .assist-sample-name {
       margin: 6px 0 10px;
       word-break: break-word;
diff --git a/src/content/components/file-selector-panel.ts b/src/content/components/file-selector-panel.ts
index 4a7d762..f502ca1 100644
--- a/src/content/components/file-selector-panel.ts
+++ b/src/content/components/file-selector-panel.ts
@@ -51,6 +51,7 @@ import {
   getRulePresetById,
   getRecentRulePresets,
   getTemplateRulePresets,
+  isRulePresetConfigValid,
   recordRecentRulePreset,
   saveTemplateRulePreset,
 } from '../../utils/rule-presets';
@@ -623,6 +624,11 @@ export class FileSelectorPanel extends LitElement {
       return;
     }
 
+    if (!isRulePresetConfigValid(record.config)) {
+      alert(I18nService.t('rule_preset_invalid'));
+      return;
+    }
+
     this.ruleConfig = record.config;
     this.episodeExtractAssistState = {
       ...DEFAULT_EPISODE_EXTRACT_ASSIST_STATE,
diff --git a/src/locales/en.json b/src/locales/en.json
index 35e52e3..6cad55a 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -237,5 +237,8 @@
   "episode_assist_apply_full_name": "Fill current field with full text",
   "episode_assist_use_item_as_sample": "Use this item as sample",
   "episode_assist_use_prefix_from_item": "Try using this as prefix",
-  "episode_assist_focus_segment_mode": "Switch to segment mode"
+  "episode_assist_focus_segment_mode": "Switch to segment mode",
+  "rule_preset_invalid": "This template is incompatible with the current version. Please delete and save it again.",
+  "rule_preset_invalid_badge": "Invalid",
+  "rule_preset_invalid_hint": "This template config is no longer valid and cannot be applied."
 }
diff --git a/src/locales/zh_CN.json b/src/locales/zh_CN.json
index deeeeb5..c984e0d 100644
--- a/src/locales/zh_CN.json
+++ b/src/locales/zh_CN.json
@@ -237,5 +237,8 @@
   "episode_assist_apply_full_name": "整段回填到当前字段",
   "episode_assist_use_item_as_sample": "将该项设为样本",
   "episode_assist_use_prefix_from_item": "尝试提取剧名到 prefix",
-  "episode_assist_focus_segment_mode": "切换到片段点选模式"
+  "episode_assist_focus_segment_mode": "切换到片段点选模式",
+  "rule_preset_invalid": "该模板与当前版本不兼容，请删除后重新保存。",
+  "rule_preset_invalid_badge": "已失效",
+  "rule_preset_invalid_hint": "该模板配置已失效，暂时无法应用。"
 }
diff --git a/src/locales/zh_TW.json b/src/locales/zh_TW.json
index ee1ba7c..91f04b2 100644
--- a/src/locales/zh_TW.json
+++ b/src/locales/zh_TW.json
@@ -237,5 +237,8 @@
   "episode_assist_apply_full_name": "整段回填到目前欄位",
   "episode_assist_use_item_as_sample": "將此項設為樣本",
   "episode_assist_use_prefix_from_item": "嘗試提取劇名到 prefix",
-  "episode_assist_focus_segment_mode": "切換到片段點選模式"
+  "episode_assist_focus_segment_mode": "切換到片段點選模式",
+  "rule_preset_invalid": "此模板與目前版本不相容，請刪除後重新儲存。",
+  "rule_preset_invalid_badge": "已失效",
+  "rule_preset_invalid_hint": "此模板設定已失效，暫時無法套用。"
 }
diff --git a/tests/unit/config-panel-rule-presets.test.ts b/tests/unit/config-panel-rule-presets.test.ts
index 0629cad..0985be3 100644
--- a/tests/unit/config-panel-rule-presets.test.ts
+++ b/tests/unit/config-panel-rule-presets.test.ts
@@ -21,6 +21,37 @@ describe('ConfigPanel rule preset interactions', () => {
     vi.stubGlobal('prompt', vi.fn(() => '剧集模板'));
   });
 
+  it('marks invalid presets as disabled and does not dispatch apply events', async () => {
+    const panel = new ConfigPanel();
+    panel.recentRulePresets = [
+      createPreset({
+        id: 'invalid-1',
+        source: 'recent',
+        name: '失效模板',
+        config: { type: 'replace', params: { search: '', replace: '' } },
+      }),
+    ];
+
+    const applyEvents: Array<Event> = [];
+    panel.addEventListener('apply-rule-preset', (event) => applyEvents.push(event));
+
+    document.body.appendChild(panel);
+    await panel.updateComplete;
+
+    const applyButton = panel.shadowRoot?.querySelector<HTMLButtonElement>(
+      '[data-preset-id="invalid-1"] [data-role="apply-rule-preset"]'
+    );
+    const badgeText = panel.shadowRoot?.querySelector('[data-preset-id="invalid-1"] .preset-invalid-badge')?.textContent ?? '';
+
+    expect(applyButton?.disabled).toBe(true);
+    expect(badgeText).toContain('失效');
+
+    applyButton?.dispatchEvent(new MouseEvent('click', { bubbles: true, composed: true }));
+    expect(applyEvents).toHaveLength(0);
+
+    panel.remove();
+  });
+
   it('renders recent/templates and dispatches apply, save, delete events', async () => {
     const panel = new ConfigPanel();
     panel.activeRuleConfig = {
diff --git a/tests/unit/file-selector-panel-rule-presets.test.ts b/tests/unit/file-selector-panel-rule-presets.test.ts
index 17a113c..b364c15 100644
--- a/tests/unit/file-selector-panel-rule-presets.test.ts
+++ b/tests/unit/file-selector-panel-rule-presets.test.ts
@@ -132,6 +132,34 @@ describe('FileSelectorPanel rule preset integration', () => {
     expect(panel.episodeExtractAssistState.fillMode).toBe('full-name');
   });
 
+
+  it('blocks invalid preset application and shows alert', async () => {
+    const panel = new FileSelectorPanel() as FileSelectorPanelPresetHarness;
+    const alertSpy = vi.spyOn(window, 'alert');
+    vi.spyOn(rulePresets, 'getRulePresetById').mockResolvedValue({
+      id: 'invalid-template',
+      name: '失效模板',
+      source: 'template',
+      createdAt: 1,
+      updatedAt: 1,
+      config: {
+        type: 'replace',
+        params: { search: '', replace: '' },
+      },
+    });
+
+    panel.ruleConfig = {
+      type: 'prefix',
+      params: { prefix: 'Keep', separator: '.' },
+    };
+
+    await panel.handleApplyRulePreset(new CustomEvent('apply-rule-preset', { detail: { presetId: 'invalid-template' } }));
+
+    expect(alertSpy).toHaveBeenCalledTimes(1);
+    expect(panel.ruleConfig.type).toBe('prefix');
+    expect(panel.ruleConfig.params.prefix).toBe('Keep');
+  });
+
   it('records recent presets after a successful execution', async () => {
     const panel = new FileSelectorPanel() as FileSelectorPanelPresetHarness;
     panel.adapter = new PresetTestAdapter();