diff --git a/deps/oblib/src/lib/ob_define.h b/deps/oblib/src/lib/ob_define.h
index 845ef4e2f7..cee8d3c8b9 100644
--- a/deps/oblib/src/lib/ob_define.h
+++ b/deps/oblib/src/lib/ob_define.h
@@ -33,6 +33,7 @@ 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: docs on yuque rootservice/lvnlgi
 
 // Common Object ID Type
 typedef uint64_t ObObjectID;
@@ -852,6 +853,8 @@ const int64_t OB_SCHEMA_CODE_VERSION = 1;
  *
  * OBJECT_ID FOR INNER OBJECTS (0, 500000)
  *
+ * For more details: see docs on yuque product_functionality_review/fgcxak
+ *
  * To avolid confict, border for each range should not be used.
  *
  * ################################################################################
@@ -1446,6 +1449,7 @@ 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.
+ * see more docs on yuque rootservice/cnxdv7#pIAUC
  */
 OB_INLINE bool is_sys_tenant(const uint64_t tenant_id)
 {
diff --git a/tools/upgrade/oceanbase_upgrade_dep.yml b/tools/upgrade/oceanbase_upgrade_dep.yml
index a900ac5e05..5dd3656290 100644
--- a/tools/upgrade/oceanbase_upgrade_dep.yml
+++ b/tools/upgrade/oceanbase_upgrade_dep.yml
@@ -1,5 +1,5 @@
 # 描述oceanbase各个版本升级依赖关系
-# 参考https://yuque.antfin-inc.com/ob/release/ptw5y7
+# 参考文档 release/ptw5y7
 
 # 对于每一个正式发布的ob版本，在下面的yaml文档中添加一项，包括如下属性：
 #  * version: 待升级的版本，或者升级过程中经过的版本；一般用A.B.C的版本号，如果是A.B.C-D的形式，表示build号必须大于等于D