diff --git a/frontend/scripts/regression-data-process-wizard.mjs b/frontend/scripts/regression-data-process-wizard.mjs
index 02fd65d..450aa2b 100644
--- a/frontend/scripts/regression-data-process-wizard.mjs
+++ b/frontend/scripts/regression-data-process-wizard.mjs
@@ -352,8 +352,16 @@ assert.match(viewSource, /function resetSourceDataForProcessTypeChange\(\)[\s\S]
 assert.match(taskSetupSource, /v-if="processType === 'structured'"/, '结构化配置必须仅在结构化数据类型下显示')
 const expectedStructuredOptions = [
   ['clean_invalid', '清理无效数据', '清理全空列，并剔除关键字段残缺的数据行'],
-  ['detect_structure', '识别表格结构', '识别多级表头与合并单元格，并将嵌套字段展平'],
-  ['deduplicate', '重复数据去重', '基于整行精确匹配和关键字段组合删除重复记录'],
+  [
+    'detect_structure',
+    '嵌套结构展平',
+    '展平嵌套对象和可解析的 JSON 字段；Excel 表头与合并单元格在上传时自动解析',
+  ],
+  [
+    'deduplicate',
+    '重复记录去重',
+    '按整行内容或 id、uuid、key、code、*_id 等身份字段去重，暂不支持自定义组合字段',
+  ],
   ['normalize_format', '数据格式标准化', '按所选规则统一编码、空白、字段名及 JSON 序列化格式'],
   ['filter_anomaly', '异常数据过滤', '使用 IQR 识别数值离群值，并过滤乱码等异常记录'],
   ['desensitize', '敏感信息脱敏', '识别并脱敏姓名、手机号、邮箱和身份证号'],
@@ -363,7 +371,7 @@ for (const [value, label, description] of expectedStructuredOptions) {
   assert.ok(structuredOptionsSource.includes(`label: '${label}'`), `结构化预处理缺少标签：${label}`)
   assert.ok(structuredOptionsSource.includes(`description: '${description}'`), `结构化预处理语义不准确：${value}`)
 }
-const structuredOptionValues = [...structuredOptionsSource.matchAll(/\{ value: '([^']+)', label:/g)]
+const structuredOptionValues = [...structuredOptionsSource.matchAll(/\{\s*value: '([^']+)',\s*label:/g)]
   .map((match) => match[1])
 assert.deepEqual(structuredOptionValues, expectedStructuredOptions.map(([value]) => value), '结构化预处理值集合不准确')
 assert.equal(new Set(structuredOptionValues).size, structuredOptionValues.length, '结构化预处理 value 必须唯一')
diff --git a/frontend/src/views/data-process/DataProcessDetailView.vue b/frontend/src/views/data-process/DataProcessDetailView.vue
index 0c7a029..3f60ac2 100644
--- a/frontend/src/views/data-process/DataProcessDetailView.vue
+++ b/frontend/src/views/data-process/DataProcessDetailView.vue
@@ -99,8 +99,8 @@ const chunkMethodLabelMap: Record<string, string> = {
 
 const preprocessOptionLabelMap: Record<string, string> = {
   clean_invalid: '清理无效数据',
-  detect_structure: '识别表格结构',
-  deduplicate: '重复数据去重',
+  detect_structure: '嵌套结构展平',
+  deduplicate: '重复记录去重',
   normalize_format: '数据格式标准化',
   filter_anomaly: '异常数据过滤',
   desensitize: '敏感信息脱敏',
diff --git a/frontend/src/views/data-process/create/StructuredOptionsPanel.vue b/frontend/src/views/data-process/create/StructuredOptionsPanel.vue
index 253c965..f7930ae 100644
--- a/frontend/src/views/data-process/create/StructuredOptionsPanel.vue
+++ b/frontend/src/views/data-process/create/StructuredOptionsPanel.vue
@@ -27,8 +27,16 @@ const PREPROCESS_OPTIONS: Array<{
   description: string
 }> = [
   { value: 'clean_invalid', label: '清理无效数据', description: '清理全空列，并剔除关键字段残缺的数据行' },
-  { value: 'detect_structure', label: '识别表格结构', description: '识别多级表头与合并单元格，并将嵌套字段展平' },
-  { value: 'deduplicate', label: '重复数据去重', description: '基于整行精确匹配和关键字段组合删除重复记录' },
+  {
+    value: 'detect_structure',
+    label: '嵌套结构展平',
+    description: '展平嵌套对象和可解析的 JSON 字段；Excel 表头与合并单元格在上传时自动解析',
+  },
+  {
+    value: 'deduplicate',
+    label: '重复记录去重',
+    description: '按整行内容或 id、uuid、key、code、*_id 等身份字段去重，暂不支持自定义组合字段',
+  },
   { value: 'normalize_format', label: '数据格式标准化', description: '按所选规则统一编码、空白、字段名及 JSON 序列化格式' },
   { value: 'filter_anomaly', label: '异常数据过滤', description: '使用 IQR 识别数值离群值，并过滤乱码等异常记录' },
   { value: 'desensitize', label: '敏感信息脱敏', description: '识别并脱敏姓名、手机号、邮箱和身份证号' },