diff --git a/src/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md b/src/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md
index 3461a7a91..d35af9d07 100644
--- a/src/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md
+++ b/src/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md
@@ -23,7 +23,7 @@
 
 ## 1. Basic Data Types
 
-IoTDB supports the following ten data types:
+IoTDB supports the following data types:
 
 - **BOOLEAN** (Boolean value)
 - **INT32** (32-bit integer)
diff --git a/src/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md b/src/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md
index 3461a7a91..d35af9d07 100644
--- a/src/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md
+++ b/src/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md
@@ -23,7 +23,7 @@
 
 ## 1. Basic Data Types
 
-IoTDB supports the following ten data types:
+IoTDB supports the following data types:
 
 - **BOOLEAN** (Boolean value)
 - **INT32** (32-bit integer)
diff --git a/src/zh/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md b/src/zh/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md
index c0af2749f..42ee3009a 100644
--- a/src/zh/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md
+++ b/src/zh/UserGuide/Master/Table/Background-knowledge/Data-Type_timecho.md
@@ -23,7 +23,7 @@
 
 ## 1. 基本数据类型
 
-IoTDB 支持以下十种数据类型：
+IoTDB 支持以下十一种数据类型：
 
 * BOOLEAN（布尔值）
 * INT32（整型）
diff --git a/src/zh/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md b/src/zh/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md
index c0af2749f..42ee3009a 100644
--- a/src/zh/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md
+++ b/src/zh/UserGuide/latest-Table/Background-knowledge/Data-Type_timecho.md
@@ -23,7 +23,7 @@
 
 ## 1. 基本数据类型
 
-IoTDB 支持以下十种数据类型：
+IoTDB 支持以下十一种数据类型：
 
 * BOOLEAN（布尔值）
 * INT32（整型）