diff --git a/.github/workflows/release-ota.yml b/.github/workflows/release-ota.yml
new file mode 100644
index 0000000000..f7182bcdf8
--- /dev/null
+++ b/.github/workflows/release-ota.yml
@@ -0,0 +1,38 @@
+name: release-ota
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      limit:
+        description: 'Number of releases to fetch, 2 at least'
+        required: false
+        default: 21
+        type: number
+
+jobs:
+  make-ota:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: actions/checkout@v3
+      - name: "Build OTA"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          mkdir -pv build-ota && cd build-ota
+          ../tools/OTAPacker/build.sh 'MaaAssistantArknights/MaaAssistantArknights' ${{ inputs.limit }}
+      - name: "Set tag"
+        id: set_tag
+        run: |
+          echo "release_tag=$(head -n 1 build-ota/releases)" >> $GITHUB_ENV
+      - name: "Upload to MaaRelease"
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_name: ${{ format('{0}/{1}', github.repository_owner, 'MaaRelease') }}
+          repo_token: ${{ secrets.MAARELEASE_RELEASE }}
+          file_glob: true
+          file: build-ota/*.zip
+          tag: ${{ env.release_tag }}
+          overwrite: true
+
diff --git a/tools/OTAPacker/build.sh b/tools/OTAPacker/build.sh
new file mode 100755
index 0000000000..44debffda9
--- /dev/null
+++ b/tools/OTAPacker/build.sh
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+source_repo=$1
+limit=${2:-6}
+
+ghrepo() {
+    gh $@ --repo $source_repo
+}
+
+working_dir=$(pwd)
+echo "working_dir: $working_dir"
+
+echo "fetching $limit release info from $source_repo"
+ghrepo release list --limit=$limit | awk '{ print $1 }' | tee releases
+
+latest_tag=$(head -n 1 ./releases)
+
+while read tag; do
+    (
+        mkdir -pv "$tag"
+        cd "$tag"
+        echo "Downloading $tag"
+        ghrepo release download "$tag" --pattern "MAA-$tag-win-x64.zip" --pattern "MaaBundle-$tag.zip" --clobber
+        mkdir -pv 'content'
+        echo "Unzip" *.zip
+        unzip -qq -O gbk -o "*.zip" -d 'content'
+        rm -fv *.zip
+    )
+
+    cd $working_dir
+
+    if [[ "$tag" != "$latest_tag" ]]; then
+        echo "comparing files $tag...$latest_tag"
+        rsync -ancv --delete --info=FLIST0 "$latest_tag"/content/ "$tag"/content/ \
+            | grep -v '/$' \
+            | head -n -3 \
+            | tee "$tag"/files.txt
+
+        echo "installing files"
+        mkdir -pv "$tag"/pkg
+
+        while read file; do
+            if [[ $file == "deleting "* ]]; then
+                echo ${file#"deleting "} >> "$tag"/pkg/deleted.txt
+            else
+                install -DCv "$latest_tag"/content/"$file" "$tag"/pkg/"$file"
+            fi
+        done < "$tag"/files.txt
+
+        echo "Creating zip archive"
+        cd "$tag"/pkg
+        zip -q -9 -r "$working_dir"/"${tag}_${latest_tag}.zip" .
+        cd $working_dir
+    fi
+done < ./releases
+