diff --git a/plugin/lib/quickcomposer/data/index.js b/plugin/lib/quickcomposer/data/index.js
index 671ccf0..61b7424 100644
--- a/plugin/lib/quickcomposer/data/index.js
+++ b/plugin/lib/quickcomposer/data/index.js
@@ -4,6 +4,7 @@ const zlib = require("./zlib");
 const { htmlParser } = require("./htmlParser");
 const array = require("./array");
 const object = require("./object");
+const type = require("./type");
 const time = require("./time");
 const { regexTransform } = require("./regexTransform");
 
@@ -15,5 +16,6 @@ module.exports = {
   array,
   object,
   time,
+  type,
   regexTransform,
 };
diff --git a/plugin/lib/quickcomposer/data/type.js b/plugin/lib/quickcomposer/data/type.js
new file mode 100644
index 0000000..ef04920
--- /dev/null
+++ b/plugin/lib/quickcomposer/data/type.js
@@ -0,0 +1,12 @@
+const get = (value) => {
+  return typeof value;
+};
+
+const check = (value, type) => {
+  return typeof value === type;
+};
+
+module.exports = {
+  get,
+  check,
+};
diff --git a/src/js/composer/commands/dataCommands.js b/src/js/composer/commands/dataCommands.js
index e4ca27d..60d100e 100644
--- a/src/js/composer/commands/dataCommands.js
+++ b/src/js/composer/commands/dataCommands.js
@@ -5,6 +5,60 @@ export const dataCommands = {
   icon: "format_color_text",
   defaultOpened: false,
   commands: [
+    {
+      value: "typeof",
+      label: "类型检查",
+      icon: "check_circle",
+      subCommands: [
+        {
+          value: "quickcomposer.data.type.get",
+          label: "获取类型",
+          icon: "text_fields",
+          outputs: {
+            label: "类型",
+            suggestName: "valueType",
+            typeName: "字符串",
+          },
+        },
+        {
+          value: "quickcomposer.data.type.check",
+          label: "判断类型",
+          icon: "text_fields",
+          config: [
+            {
+              component: "QSelect",
+              icon: "text_fields",
+              options: [
+                { label: "字符串", value: "string" },
+                { label: "数字", value: "number" },
+                { label: "布尔", value: "boolean" },
+                { label: "数组", value: "array" },
+                { label: "对象", value: "object" },
+                { label: "函数", value: "function" },
+                { label: "空", value: "null" },
+                { label: "未定义", value: "undefined" },
+                { label: "Buffer", value: "buffer" },
+              ],
+              width: 12,
+            },
+          ],
+          outputs: {
+            label: "判断结果",
+            suggestName: "isType",
+            typeName: "布尔",
+          },
+        },
+      ],
+      config: [
+        {
+          label: "要检查的值",
+          component: "VariableInput",
+          defaultValue: newVarInputVal("var"),
+          icon: "text_fields",
+          width: 12,
+        },
+      ],
+    },
     {
       value: "quickcomposer.data.string.reverse",
       label: "字符串处理",