diff --git a/deps/oblib/src/lib/allocator/ob_retire_station.h b/deps/oblib/src/lib/allocator/ob_retire_station.h
index bfb1e2f587..1f12c94db4 100644
--- a/deps/oblib/src/lib/allocator/ob_retire_station.h
+++ b/deps/oblib/src/lib/allocator/ob_retire_station.h
@@ -186,7 +186,6 @@ private:
 // RetireStation is a data structure that guarantees memory safety through delayed delete
 // using a thread local retire list
 //
-// Doc: https://yuque.antfin-inc.com/ob/transaction/retire_station
 class RetireStation
 {
 public:
diff --git a/deps/oblib/src/lib/charset/ob_charset.h b/deps/oblib/src/lib/charset/ob_charset.h
index 3c49ddbac5..fb21a47fd4 100644
--- a/deps/oblib/src/lib/charset/ob_charset.h
+++ b/deps/oblib/src/lib/charset/ob_charset.h
@@ -24,7 +24,6 @@ namespace oceanbase
 namespace common
 {
 
-// 学习字符集推荐个网站 https://www.qqxiuzi.cn/daohang.htm
 // 我们目前的字符集实现参考MySQL，现在MySQL源码，进入strings目录，
 // 根据文件名后缀可以大体找到对应编码实现
 
@@ -108,7 +107,6 @@ enum ObCollationType
 
 // oracle 模式下字符集名称对应的 ID 值
 // https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions095.htm
-// https://blog.csdn.net/guizicjj/article/details/4434088
 enum ObNlsCharsetId
 {
   CHARSET_INVALID_ID = 0,
diff --git a/deps/oblib/src/lib/ob_define.h b/deps/oblib/src/lib/ob_define.h
index 82f91e0353..845ef4e2f7 100644
--- a/deps/oblib/src/lib/ob_define.h
+++ b/deps/oblib/src/lib/ob_define.h
@@ -33,7 +33,6 @@ namespace common
 // All objects have common ID Type, including Table/Partition and so on.
 // Define 'uint64_t' as Object ID Type for code-compatibility temporarily.
 // TODO: Use 'int64_t' instead when all objects are ready.
-// See: https://yuque.antfin-inc.com/ob/rootservice/lvnlgi
 
 // Common Object ID Type
 typedef uint64_t ObObjectID;
@@ -853,8 +852,6 @@ const int64_t OB_SCHEMA_CODE_VERSION = 1;
  *
  * OBJECT_ID FOR INNER OBJECTS (0, 500000)
  *
- * For more details: https://yuque.antfin-inc.com/ob/product_functionality_review/fgcxak
- *
  * To avolid confict, border for each range should not be used.
  *
  * ################################################################################
@@ -1449,7 +1446,6 @@ OB_INLINE uint64_t combine_sequence_id(int64_t rootservice_epoch, uint64_t pure_
  * 1) If tenant_id = OB_SYS_TENANT_ID, it's sys tenant.
  * 2) If tenant_id is odd, it's meta tenant.
  * 3) If tenant_id is even, it't user tenant.
- * https://yuque.antfin-inc.com/ob/rootservice/cnxdv7#pIAUC
  */
 OB_INLINE bool is_sys_tenant(const uint64_t tenant_id)
 {
diff --git a/src/libtable/src/libobtable.h b/src/libtable/src/libobtable.h
index 32576d58ec..7f3d85c722 100644
--- a/src/libtable/src/libobtable.h
+++ b/src/libtable/src/libobtable.h
@@ -28,7 +28,6 @@
  * 3. ObHKVTable
  * 4. ObTableServiceClient
  *
- * @see https://lark.alipay.com/ob-public/ob_nosql for the user guide.
  */
 namespace oceanbase
 {