diff --git a/README.md b/README.md
index 32a7a37..aa40027 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@
 - 依序嘗試取得 Gitea API token。
 - 預設每個套件保留最新 `2` 個版本。
 - 直接刪除超出保留數量的舊版本。
+- 只處理你指定的 NuGet 套件名稱，可一次指定多個。
 - 輸出可搜尋的 log，包含 API status、request id 與 summary。
 
 ## Token 來源順序
@@ -25,6 +26,7 @@ Action 會依序嘗試以下來源：
 | --- | --- | --- | --- |
 | `RUNNER_TOKEN` | string | - | Gitea API token，優先順序最高 |
 | `KEEP_COUNT` | integer string | `2` | 每個套件要保留的最新版本數，必須是整數且 `>= 0` |
+| `PACKAGE_NAMES` | string | - | 要清理的 NuGet 套件名稱，逗號分隔，可一次指定多個 |
 
 ## Log 行為
 
@@ -33,6 +35,7 @@ Action 會依序嘗試以下來源：
 - `Trying token from ...`
 - `Using token from ...`
 - `keep_count=...`
+- `package_names=...`
 - `GET /api/v1/... -> 200 OK`
 - `Candidate to delete: ...`
 - `Deleted package ... -> 204 No Content`
@@ -49,6 +52,7 @@ jobs:
         with:
           RUNNER_TOKEN: ${{ secrets.GITEA_TOKEN }}
           KEEP_COUNT: 2
+          PACKAGE_NAMES: package-a,package-b
 ```
 
 ## 相關檔案
diff --git a/action.yaml b/action.yaml
index 048ee0c..2416ef1 100644
--- a/action.yaml
+++ b/action.yaml
@@ -3,12 +3,15 @@ description: '清理 Nuget 沒用到的資源'
 author: 'Jeffery'
 inputs:
   RUNNER_TOKEN:
-    description: 'GitHub Runner Token'
+    description: 'Gitea API token, highest priority source'
     required: false
   KEEP_COUNT:
     description: '保留的版本數量'
     required: false
     default: '2'
+  PACKAGE_NAMES:
+    description: '要清理的 NuGet 套件名稱，逗號分隔，可一次指定多個'
+    required: true
 runs:
   using: 'docker'
   image: 'Dockerfile'
diff --git a/entrypoint.sh b/entrypoint.sh
index 1071a77..a364f3b 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -10,6 +10,8 @@ fail() {
   exit 1
 }
 
+declare -A TARGET_PACKAGES=()
+
 resolve_token() {
   log "Trying token from RUNNER_TOKEN"
 
@@ -36,6 +38,30 @@ resolve_keep_versions() {
   printf '%s' "${raw_value}"
 }
 
+resolve_package_names() {
+  local raw_value="${INPUT_PACKAGE_NAMES:-}"
+  local normalized package_name
+  local -a package_name_list
+
+  if [[ -z "${raw_value}" ]]; then
+    fail "Missing PACKAGE_NAMES"
+  fi
+
+  normalized="${raw_value//$'\n'/,}"
+
+  IFS=',' read -r -a package_name_list <<< "${normalized}"
+  for package_name in "${package_name_list[@]}"; do
+    package_name="${package_name#"${package_name%%[![:space:]]*}"}"
+    package_name="${package_name%"${package_name##*[![:space:]]}"}"
+    [[ -n "${package_name}" ]] || continue
+    TARGET_PACKAGES["${package_name}"]=1
+  done
+
+  if (( ${#TARGET_PACKAGES[@]} == 0 )); then
+    fail "Missing PACKAGE_NAMES"
+  fi
+}
+
 init_repo_context() {
   local repository="${GITEA_REPOSITORY:-}"
 
@@ -142,12 +168,17 @@ collect_package_candidates() {
 
   while IFS= read -r group_json; do
     package_name="$(jq -r '.[0].name' <<<"${group_json}")"
+
+    if [[ -z "${TARGET_PACKAGES["$package_name"]+x}" ]]; then
+      continue
+    fi
+
     total_versions="$(jq 'length' <<<"${group_json}")"
 
     PACKAGE_COUNT=$((PACKAGE_COUNT + 1))
     TOTAL_VERSION_COUNT=$((TOTAL_VERSION_COUNT + total_versions))
 
-    log "Package ${package_name}: total_versions=${total_versions} keep_versions=${keep_versions}"
+    log "Package ${package_name}: total_versions=${total_versions} keep_count=${keep_versions}"
     log "Package ${package_name} versions (oldest -> newest):"
     while IFS=$'\t' read -r version created_at; do
       [[ -z "${version}" ]] && continue
@@ -219,6 +250,8 @@ main() {
   init_repo_context
   keep_versions="$(resolve_keep_versions)"
   log "keep_count=${keep_versions}"
+  resolve_package_names
+  log "package_names=${INPUT_PACKAGE_NAMES}"
   log "Token source resolved successfully"
 
   CANDIDATES_FILE="$(mktemp)"
@@ -230,6 +263,9 @@ main() {
   trap 'rm -f "${CANDIDATES_FILE}"' EXIT
 
   collect_package_candidates
+  if (( PACKAGE_COUNT == 0 )); then
+    log "No matching packages found for requested package_names"
+  fi
   process_candidates
   log "Stage 4 complete"
 }