diff --git a/TOC.md b/TOC.md
index d5eff9172e8b..abc0b29431dd 100644
--- a/TOC.md
+++ b/TOC.md
@@ -116,16 +116,32 @@
     + [软件版本](/tune-software-version.md) @张文博
     + 配置
       + [TiKV 调优](/tune-tikv-performance.md) @刘玮
-  + SQL 性能调优
-    + [调优基本概念](/sql-optimization-concepts.md) @崔一丁
-    + 优化器概览
-      + [执行计划](/query-execution-plan.md) @崔一丁
-      + [分布式执行计划](/distributed-exectuion-plan.md) @崔一丁
-      + 管理执行计划
-        + [执行计划绑定](/execution-plan-binding.md) @崔一丁
-        + [Optimizer Hints](/optimizer-hints.md) @崔一丁
-        + [使用 Index Merge 方式访问表](/index-merge.md) @崔一丁
-      + [Join Reorder 算法简介](/join-reorder.md) @崔一丁
+    + [SQL 性能调优] @崔一丁
+      + [SQL 性能调优概览](/sql-tuning-overview.md)
+      + [理解 TiDB 执行计划](/query-execution-plan.md)
+      + [SQL 优化]
+        + [SQL 优化流程简介](/sql-optimization-concepts.md)
+        + [逻辑优化]
+          + [逻辑优化概览](/sql-logical-optimization.md)
+          + [子查询相关的优化](/subquery-optimization.md)
+          + [列裁剪](/column-pruning.md)
+          + [关联子查询去关联](/correlated-subquery-optimization.md)
+          + [Max/Min 消除](/max-min-eliminate.md)
+          + [谓词下推](/predicate-push-down.md)
+          + [分区裁剪](/partition-pruning.md)
+          + [TopN 和 Limit 下推](/topn-limit-push-down.md)
+          + [Join Reorder](/join-reorder.md)
+        + [物理优化]
+          + [物理优化概览](/sql-physical-optimization.md)
+          + [索引的选择](/index-choose.md)
+          + [统计信息介绍](/statistics-intro.md)
+          + [错误索引的解决方案](/wrong-index-solution.md)
+          + [Distinct 优化](/agg-distinct-optimization.md)
+        + [控制执行计划]
+          + [控制执行计划概览](/control-execution-plan.md)
+          + [Optimizer Hints](/optimizer-hints.md)
+          + [执行计划绑定](/execution-plan-binding.md)
+          + [优化规则及表达式下推的黑名单](/blacklist-control-plan.md)
     + [性能监控](/monitor-sql-performance.md) @崔一丁
 + 教程
   + [同城多中心部署](/multi-data-centers-in-one-city-deployment.md)（[参考](https://pingcap.com/docs-cn/stable/geo-redundancy-deployment/)）@侯召墩
diff --git a/agg-distinct-optimization.md b/agg-distinct-optimization.md
new file mode 100644
index 000000000000..e3056c59fa42
--- /dev/null
+++ b/agg-distinct-optimization.md
@@ -0,0 +1,6 @@
+---
+title: Distinct 优化
+category: performance
+---
+
+# Distinct 优化
\ No newline at end of file
diff --git a/blacklist-control-plan.md b/blacklist-control-plan.md
new file mode 100644
index 000000000000..2e8dc118d1b8
--- /dev/null
+++ b/blacklist-control-plan.md
@@ -0,0 +1,6 @@
+---
+title: 优化规则及表达式下推的黑名单
+category: performance
+---
+
+# 优化规则及表达式下推的黑名单
\ No newline at end of file
diff --git a/column-pruning.md b/column-pruning.md
new file mode 100644
index 000000000000..61250864ad89
--- /dev/null
+++ b/column-pruning.md
@@ -0,0 +1,6 @@
+---
+title: 列裁剪
+category: performance
+---
+
+# 列裁剪
\ No newline at end of file
diff --git a/control-execution-plan.md b/control-execution-plan.md
new file mode 100644
index 000000000000..ca8d6e3c9b7d
--- /dev/null
+++ b/control-execution-plan.md
@@ -0,0 +1,12 @@
+---
+title: 控制执行计划
+category: performance
+---
+
+# 控制执行计划
+
+Sub topics:
+
+- [Optimizer Hints](/optimizer-hints.md)
+- [执行计划绑定](/execution-plan-binding.md)
+- [优化规则及表达式下推的黑名单](/blacklist-control-plan.md)
\ No newline at end of file
diff --git a/correlated-subquery-optimization.md b/correlated-subquery-optimization.md
new file mode 100644
index 000000000000..6efaf95781c0
--- /dev/null
+++ b/correlated-subquery-optimization.md
@@ -0,0 +1,6 @@
+---
+title: 关联子查询去关联
+category: performance
+---
+
+# 关联子查询去关联
diff --git a/index-choose.md b/index-choose.md
new file mode 100644
index 000000000000..ddf4dce701aa
--- /dev/null
+++ b/index-choose.md
@@ -0,0 +1,6 @@
+---
+title: 索引的选择
+category: performance
+---
+
+# 索引的选择
\ No newline at end of file
diff --git a/partition-pruning.md b/partition-pruning.md
new file mode 100644
index 000000000000..b10ffd9b8c86
--- /dev/null
+++ b/partition-pruning.md
@@ -0,0 +1,6 @@
+---
+title: 分区裁剪
+category: performance
+---
+
+# 分区裁剪
\ No newline at end of file
diff --git a/predicate-push-down.md b/predicate-push-down.md
new file mode 100644
index 000000000000..7844f02584b1
--- /dev/null
+++ b/predicate-push-down.md
@@ -0,0 +1,6 @@
+---
+title: 谓词下推
+category: performance
+---
+
+# 谓词下推
\ No newline at end of file
diff --git a/query-execution-plan.md b/query-execution-plan.md
index 2cb83feb4ebf..3dcfebd9b071 100644
--- a/query-execution-plan.md
+++ b/query-execution-plan.md
@@ -1,6 +1,6 @@
 ---
 title: 理解 TiDB 执行计划
-category: reference
+category: performance
 aliases: ['/docs-cn/dev/reference/performance/understanding-the-query-execution-plan/']
 ---
 
diff --git a/sql-logical-optimization.md b/sql-logical-optimization.md
new file mode 100644
index 000000000000..0bf55f574a5b
--- /dev/null
+++ b/sql-logical-optimization.md
@@ -0,0 +1,17 @@
+---
+title: 逻辑优化
+category: performance
+---
+
+# 逻辑优化
+
+sub topics:
+
+- [子查询相关的优化](/subquery-optimization.md)
+- [列裁剪](/column-pruning.md)
+- [关联子查询去关联](/correlated-subquery-optimization.md)
+- [Max/Min 消除](/max-min-eliminate.md)
+- [谓词下推](/predicate-push-down.md)
+- [分区裁剪](/partition-pruning.md)
+- [TopN 和 Limit 下推](/topn-limit-push-down.md)
+- [Join Reorder](/join-reorder.md)
\ No newline at end of file
diff --git a/sql-optimization-concepts.md b/sql-optimization-concepts.md
index 57e7829b12ad..db7166f73ec9 100644
--- a/sql-optimization-concepts.md
+++ b/sql-optimization-concepts.md
@@ -1,24 +1,30 @@
 ---
 title: SQL 优化流程简介
-category: reference
+category: performance
 aliases: ['/docs-cn/dev/reference/performance/sql-optimizer-overview/']
 ---
 
 # SQL 优化流程简介
 
+sub topics:
+
+- [逻辑优化](/sql-logical-optimization.md)
+- [物理优化](/sql-physical-optimization.md)
+
+<!--
 在 TiDB 中，SQL 优化过程分为逻辑优化和物理优化两个阶段。
 
 ## 逻辑优化简介
 
 逻辑优化是基于规则的优化，对输入的逻辑执行计划按顺序应用一些优化规则，从而使整个逻辑执行计划变得更好。这些优化规则包括：
 
-- 列裁剪
-- 投影消除
-- 关联子查询去关联
+- [子查询相关的优化](./subquery-optimization.md)
+- [列裁剪](./column-pruning.md)
+- [关联子查询去关联](./correlated-subquery-optimization.md)
 - [Max/Min 消除](/max-min-eliminate.md)
-- 谓词下推
-- 分区裁剪
-- TopN 和 Limit 下推
+- [谓词下推](./predicate-push-down.md)
+- [分区裁剪](./partition-pruning.md)
+- [TopN 和 Limit 下推](./topn-limit-push-down.md)
 - [Join Reorder](/join-reorder.md)
 
 ## 物理优化简介
@@ -26,3 +32,11 @@ aliases: ['/docs-cn/dev/reference/performance/sql-optimizer-overview/']
 物理优化是基于代价的优化，为上一阶段产生的逻辑执行计划制定物理执行计划。这一阶段中，优化器会为逻辑执行计划中的每个算子选择具体的物理实现。逻辑算子的不同物理实现有着不同的时间复杂度、资源消耗和物理属性等。在这个过程中，优化器会根据数据的统计信息来确定不同物理实现的代价，并选择整体代价最小的物理执行计划。
 
 逻辑执行计划是一个树形结构，每个节点对应 SQL 中的一个逻辑算子。同样的，物理执行计划也是一个树形结构，每个节点对应 SQL 中的一个物理算子。逻辑算子只描述这个算子的功能，而物理算子则描述了完成这个功能的具体算法。对于同一个逻辑算子，可能有多个物理算子实现，比如 `LogicalAggregate`，它的实现可以是采用哈希算法的 `HashAggregate`，也可以是流式的 `StreamAggregate`。不同的物理算子具有不同的物理属性，也对其子节点有着不同的物理属性的要求。物理属性包括数据的顺序和分布等。TiDB 中现在只考虑了数据的顺序。
+
+sub topics:
+
+- [索引的选择](./index-choose.md)
+- [统计信息介绍](./statistics-intro.md)
+- [发现索引选错时](./wrong-index-solution.md)
+- [Distinct 优化](./agg-distinct-optimization.md)
+-->
\ No newline at end of file
diff --git a/sql-physical-optimization.md b/sql-physical-optimization.md
new file mode 100644
index 000000000000..08038b14a303
--- /dev/null
+++ b/sql-physical-optimization.md
@@ -0,0 +1,13 @@
+---
+title: 物理优化
+category: performance
+---
+
+# 物理优化
+
+sub topics:
+
+- [索引的选择](/index-choose.md)
+- [统计信息介绍](/statistics-intro.md)
+- [错误索引的解决方案](/wrong-index-solution.md)
+- [Distinct 优化](/agg-distinct-optimization.md)
diff --git a/sql-tuning-overview.md b/sql-tuning-overview.md
new file mode 100644
index 000000000000..8e57ebbef73e
--- /dev/null
+++ b/sql-tuning-overview.md
@@ -0,0 +1,12 @@
+---
+title: SQL 性能调优
+category: performance
+---
+
+# SQL 调优概览
+
+Sub Topics:
+
+- [理解 TiDB 执行计划](/query-execution-plan.md)
+- [SQL 优化流程简介](/sql-optimization-concepts.md)
+- [控制执行计划](/control-execution-plan.md)
diff --git a/statistics-intro.md b/statistics-intro.md
new file mode 100644
index 000000000000..272c5dfc3fa9
--- /dev/null
+++ b/statistics-intro.md
@@ -0,0 +1,6 @@
+---
+title: 统计信息介绍
+category: performance
+---
+
+# 统计信息介绍
\ No newline at end of file
diff --git a/subquery-optimization.md b/subquery-optimization.md
new file mode 100644
index 000000000000..f38bbaf84572
--- /dev/null
+++ b/subquery-optimization.md
@@ -0,0 +1,6 @@
+---
+title: 子查询相关的优化
+category: performance
+---
+
+# 子查询相关的优化
\ No newline at end of file
diff --git a/topn-limit-push-down.md b/topn-limit-push-down.md
new file mode 100644
index 000000000000..b6a688654ecb
--- /dev/null
+++ b/topn-limit-push-down.md
@@ -0,0 +1,6 @@
+---
+title: TopN 和 Limit 下推
+category: performance
+---
+
+# TopN 和 Limit 下推
\ No newline at end of file
diff --git a/wrong-index-solution.md b/wrong-index-solution.md
new file mode 100644
index 000000000000..252bca4d8bae
--- /dev/null
+++ b/wrong-index-solution.md
@@ -0,0 +1,6 @@
+---
+title: 错误索引的解决方案
+category: performance
+---
+
+# 错误索引的解决方案