diff --git a/package.json b/package.json
index 5de8883..3bf4250 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,8 @@
     "clear": "node main.js clear",
     "check": "node main.js check",
     "update": "node main.js update",
-    "build_all": "bash script/build/pkg.sh"
+    "build_all": "bash script/build/pkg.sh",
+    "changelog": "bash script/build/changelog.sh"
   },
   "files": [
     "lib",
diff --git a/script/build/changelog.sh b/script/build/changelog.sh
new file mode 100644
index 0000000..911a76f
--- /dev/null
+++ b/script/build/changelog.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+# version: <major.minor.patch>
+level=patch
+
+npm version $level \
+    --no-commit-hooks \
+    --no-git-tag-version
+
+OLD_VERSION_ARRAY=($(npm view lottery-auto-script version | tr '.' ' '))
+major=${OLD_VERSION_ARRAY[0]}
+minor=${OLD_VERSION_ARRAY[1]}
+patch=${OLD_VERSION_ARRAY[2]}
+
+case "${level}" in
+"major")
+    ((major += 1))
+    ;;
+"minor")
+    ((minor += 1))
+    ;;
+*)
+    ((patch += 1))
+    ;;
+esac
+
+NEW_VERSION="$major.$minor.$patch"
+
+echo "New Version: $NEW_VERSION"
+
+GIT_LOG="$(git log --pretty=format:"* %h %s" | sed -e '/CHANGELOG/,$d' | sed ':a;N;s/\n/\\n/g;ta')"
+
+sed -i "/# CHANGELOG/a\## 主要变化($NEW_VERSION)\n$GIT_LOG\n\n_如果之前版本小于上一版本,请查看[CHANGELOG](CHANGELOG.md)变更说明_\n" CHANGELOG.md
+
+git add .
+git commit -m "docs: 更新CHANGELOG"