diff --git a/src/UserGuide/Master/API/RestServiceV1.md b/src/UserGuide/Master/API/RestServiceV1.md
index 5dc7f1b88..34af05673 100644
--- a/src/UserGuide/Master/API/RestServiceV1.md
+++ b/src/UserGuide/Master/API/RestServiceV1.md
@@ -538,7 +538,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
@@ -575,7 +575,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
diff --git a/src/UserGuide/Master/API/RestServiceV2.md b/src/UserGuide/Master/API/RestServiceV2.md
index 6cd9a902d..24fe76b67 100644
--- a/src/UserGuide/Master/API/RestServiceV2.md
+++ b/src/UserGuide/Master/API/RestServiceV2.md
@@ -538,7 +538,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
@@ -575,7 +575,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
diff --git a/src/UserGuide/Master/SQL-Manual/SQL-Manual.md b/src/UserGuide/Master/SQL-Manual/SQL-Manual.md
index 65b49f982..4439e23b5 100644
--- a/src/UserGuide/Master/SQL-Manual/SQL-Manual.md
+++ b/src/UserGuide/Master/SQL-Manual/SQL-Manual.md
@@ -160,8 +160,10 @@ IoTDB> show schema templates
 IoTDB> show nodes in schema template t1
 IoTDB> show paths set schema template t1
 IoTDB> show paths using schema template t1
-IoTDB> show devices where template = t1
-IoTDB> show devices where template != t1
+IoTDB> show devices where template = 't1'
+IoTDB> show devices where template != 't1'
+IoTDB> show devices where template is null
+IoTDB> show devices where template is not null
 ```
 
 ### Deactivate Schema Template
diff --git a/src/UserGuide/Master/User-Manual/Operate-Metadata.md b/src/UserGuide/Master/User-Manual/Operate-Metadata.md
index 9f6362762..77b9f00fe 100644
--- a/src/UserGuide/Master/User-Manual/Operate-Metadata.md
+++ b/src/UserGuide/Master/User-Manual/Operate-Metadata.md
@@ -1092,7 +1092,8 @@ Similar to `Show Timeseries`, IoTDB also supports two ways of viewing devices:
 * `SHOW DEVICES` statement presents all devices' information, which is equal to `SHOW DEVICES root.**`.
 * `SHOW DEVICES <PathPattern>` statement specifies the `PathPattern` and returns the devices information matching the pathPattern and under the given level.
 * `WHERE` condition supports `DEVICE contains 'xxx'`  to do a fuzzy query based on the device name.
-* `WHERE` condition supports `TEMPLATE = 'xxx'`,`TEMPLATE != 'xxx` to do a filter query based on the template name.
+* `WHERE` condition supports `TEMPLATE = 'xxx'`,`TEMPLATE != 'xxx'` to do a filter query based on the template name.
+* `WHERE` condition supports `TEMPLATE is null`,`TEMPLATE is not null` to do a filter query based on whether the template is null (null indicating it's inactive)
 
 SQL statement is as follows:
 
@@ -1100,7 +1101,8 @@ SQL statement is as follows:
 IoTDB> show devices
 IoTDB> show devices root.ln.**
 IoTDB> show devices root.ln.** where device contains 't'
-IoTDB> show devices root.ln.** where template = "t1"
+IoTDB> show devices root.ln.** where template = 't1'
+IoTDB> show devices root.ln.** where template is null
 ```
 
 You can get results below:
@@ -1130,12 +1132,29 @@ It costs 0.001s
 |          devices|isAligned| Template|
 +-----------------+---------+---------+
 |root.ln.wf01.wt01|    false|       t1|
+|root.ln.wf02.wt02|    false|     null|
++-----------------+---------+---------+
+Total line number = 2
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf01.wt01|    false|       t1|
++-----------------+---------+---------+
+Total line number = 1
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf02.wt02|    false|     null|
 +-----------------+---------+---------+
 Total line number = 1
 It costs 0.001s
 ```
 
-`isAligned` indicates whether the timeseries under the device are aligned, `Template` displays the name of the template activated on the device, with "null" indicating that no template has been activated.
+`isAligned` indicates whether the timeseries under the device are aligned, `Template` displays the name of the template activated on the device, with `null` indicating that no template has been activated.
 
 To view devices' information with database, we can use `SHOW DEVICES WITH DATABASE` statement.
 
diff --git a/src/UserGuide/Master/stage/Operate-Metadata/Node.md b/src/UserGuide/Master/stage/Operate-Metadata/Node.md
index 9c9c82ebf..b88609651 100644
--- a/src/UserGuide/Master/stage/Operate-Metadata/Node.md
+++ b/src/UserGuide/Master/stage/Operate-Metadata/Node.md
@@ -141,7 +141,8 @@ Similar to `Show Timeseries`, IoTDB also supports two ways of viewing devices:
 * `SHOW DEVICES` statement presents all devices' information, which is equal to `SHOW DEVICES root.**`.
 * `SHOW DEVICES <PathPattern>` statement specifies the `PathPattern` and returns the devices information matching the pathPattern and under the given level.
 * `WHERE` condition supports `DEVICE contains 'xxx'`  to do a fuzzy query based on the device name.
-* `WHERE` condition supports `TEMPLATE = 'xxx'`,`TEMPLATE != 'xxx` to do a filter query based on the template name.
+* `WHERE` condition supports `TEMPLATE = 'xxx'`,`TEMPLATE != 'xxx'` to do a filter query based on the template name.
+* `WHERE` condition supports `TEMPLATE is null`,`TEMPLATE is not null` to do a filter query based on whether the template is null (indicating it's inactive) or not null (indicating activation).
 
 SQL statement is as follows:
 
@@ -149,7 +150,8 @@ SQL statement is as follows:
 IoTDB> show devices
 IoTDB> show devices root.ln.**
 IoTDB> show devices root.ln.** where device contains 't'
-IoTDB> show devices root.ln.** where template = "t1"
+IoTDB> show devices root.ln.** where template = 't1'
+IoTDB> show devices root.ln.** where template is null
 ```
 
 You can get results below:
@@ -179,6 +181,23 @@ It costs 0.001s
 |          devices|isAligned| Template|
 +-----------------+---------+---------+
 |root.ln.wf01.wt01|    false|       t1|
+|root.ln.wf02.wt02|    false|     null|
++-----------------+---------+---------+
+Total line number = 2
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf01.wt01|    false|       t1|
++-----------------+---------+---------+
+Total line number = 1
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf02.wt02|    false|     null|
 +-----------------+---------+---------+
 Total line number = 1
 It costs 0.001s
diff --git a/src/zh/UserGuide/Master/API/RestServiceV1.md b/src/zh/UserGuide/Master/API/RestServiceV1.md
index b58a71ecb..b72436621 100644
--- a/src/zh/UserGuide/Master/API/RestServiceV1.md
+++ b/src/zh/UserGuide/Master/API/RestServiceV1.md
@@ -543,7 +543,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
@@ -581,7 +581,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
diff --git a/src/zh/UserGuide/Master/API/RestServiceV2.md b/src/zh/UserGuide/Master/API/RestServiceV2.md
index 37c3c3a53..e174fee3b 100644
--- a/src/zh/UserGuide/Master/API/RestServiceV2.md
+++ b/src/zh/UserGuide/Master/API/RestServiceV2.md
@@ -543,7 +543,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
@@ -581,7 +581,7 @@ curl -H "Content-Type:application/json" -H "Authorization:Basic cm9vdDpyb290" -X
     ],
     [
       "t1",
-      "null"
+      null
     ]
   ]
 }
diff --git a/src/zh/UserGuide/Master/SQL-Manual/SQL-Manual.md b/src/zh/UserGuide/Master/SQL-Manual/SQL-Manual.md
index 2d35bf74a..32dc1bf99 100644
--- a/src/zh/UserGuide/Master/SQL-Manual/SQL-Manual.md
+++ b/src/zh/UserGuide/Master/SQL-Manual/SQL-Manual.md
@@ -306,11 +306,21 @@ IoTDB> show paths using schema template t1
 
 IoTDB> show devices using schema template t1
 
-IoTDB> show devices where template = t1
+- 查看使用了某个元数据模板的设备信息
 
-- 查看没有使用指定元数据模板的路径
+IoTDB> show devices where template = 't1'
 
-IoTDB> show devices where template != t1
+- 查看没有使用某个元数据模板的设备信息
+
+IoTDB> show devices where template != 't1'
+
+- 查看没有使用元数据模板的设备信息
+
+IoTDB> show devices where template is null
+
+- 查看使用元数据模板的设备信息
+
+IoTDB> show devices where template is not null
 
 #### 解除元数据模板
 
diff --git a/src/zh/UserGuide/Master/User-Manual/Operate-Metadata.md b/src/zh/UserGuide/Master/User-Manual/Operate-Metadata.md
index 08c3e9551..3780ae693 100644
--- a/src/zh/UserGuide/Master/User-Manual/Operate-Metadata.md
+++ b/src/zh/UserGuide/Master/User-Manual/Operate-Metadata.md
@@ -1066,6 +1066,7 @@ It costs 0.002s
 * `SHOW DEVICES <PathPattern>` 语句规定了 `PathPattern`，返回给定的路径模式所匹配的设备信息。
 * `WHERE` 条件中可以使用 `DEVICE contains 'xxx'`，根据 device 名称进行模糊查询。
 * `WHERE` 条件中可以使用 `TEMPLATE = 'xxx'`,`TEMPLATE != 'xxx'`，根据 template 名称进行过滤查询。
+* `WHERE` 条件中可以使用 `TEMPLATE is null`,`TEMPLATE is not null`，根据 template 是否为null(null 表示没激活)进行过滤查询。
 
 SQL 语句如下所示：
 
@@ -1073,7 +1074,8 @@ SQL 语句如下所示：
 IoTDB> show devices
 IoTDB> show devices root.ln.**
 IoTDB> show devices root.ln.** where device contains 't'
-IoTDB> show devices root.ln.** where template = "t1"
+IoTDB> show devices root.ln.** where template = 't1'
+IoTDB> show devices root.ln.** where template is null
 ```
 
 你可以获得如下数据：
@@ -1103,6 +1105,23 @@ It costs 0.001s
 |          devices|isAligned| Template|
 +-----------------+---------+---------+
 |root.ln.wf01.wt01|    false|       t1|
+|root.ln.wf02.wt02|    false|     null|
++-----------------+---------+---------+
+Total line number = 2
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf01.wt01|    false|       t1|
++-----------------+---------+---------+
+Total line number = 1
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf02.wt02|    false|     null|
 +-----------------+---------+---------+
 Total line number = 1
 It costs 0.001s
diff --git a/src/zh/UserGuide/Master/stage/Operate-Metadata/Node.md b/src/zh/UserGuide/Master/stage/Operate-Metadata/Node.md
index 7ee140b41..fe4618204 100644
--- a/src/zh/UserGuide/Master/stage/Operate-Metadata/Node.md
+++ b/src/zh/UserGuide/Master/stage/Operate-Metadata/Node.md
@@ -148,7 +148,7 @@ It costs 0.002s
 * `SHOW DEVICES <PathPattern>` 语句规定了 `PathPattern`，返回给定的路径模式所匹配的设备信息。
 * `WHERE` 条件中可以使用 `DEVICE contains 'xxx'`，根据 device 名称进行模糊查询。
 * `WHERE` 条件中可以使用 `TEMPLATE = 'xxx'`,`TEMPLATE != 'xxx'`，根据 template 名称进行过滤查询。
-
+* `WHERE` 条件中可以使用 `TEMPLATE is null`,`TEMPLATE is not null`，根据 template 是否为null(null 表示没激活)进行过滤查询。
 
 SQL 语句如下所示：
 
@@ -156,7 +156,8 @@ SQL 语句如下所示：
 IoTDB> show devices
 IoTDB> show devices root.ln.**
 IoTDB> show devices root.ln.** where device contains 't'
-IoTDB> show devices root.ln.** where template = "t1"
+IoTDB> show devices root.ln.** where template = 't1'
+IoTDB> show devices root.ln.** where template is null
 ```
 
 你可以获得如下数据：
@@ -186,6 +187,23 @@ It costs 0.001s
 |          devices|isAligned| Template|
 +-----------------+---------+---------+
 |root.ln.wf01.wt01|    false|       t1|
+|root.ln.wf02.wt02|    false|     null|
++-----------------+---------+---------+
+Total line number = 2
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf01.wt01|    false|       t1|
++-----------------+---------+---------+
+Total line number = 1
+It costs 0.001s
+
++-----------------+---------+---------+
+|          devices|isAligned| Template|
++-----------------+---------+---------+
+|root.ln.wf02.wt02|    false|     null|
 +-----------------+---------+---------+
 Total line number = 1
 It costs 0.001s