diff --git a/docs/uniCloud/clientdb.md b/docs/uniCloud/clientdb.md
index 1f7ca1766e842084ce5e3b296b61b72ae2ac69b0..e41780bb37015e2e68ddb3fa1dcdd9e67021343e 100644
--- a/docs/uniCloud/clientdb.md
+++ b/docs/uniCloud/clientdb.md
@@ -88,6 +88,7 @@ db.collection('list')
 |SYNTAX_ERROR										|语法错误																|
 |PERMISSION_ERROR								|权限校验未通过													|
 |VALIDATION_ERROR								|数据格式未通过													|
+|DUPLICATE_KEY									|索引冲突																|
 |SYSTEM_ERROR										|系统错误																|
 
 ### 前端环境变量@variable