diff --git a/internal/nodes/api_stream.go b/internal/nodes/api_stream.go
index 796378e..1d23f16 100644
--- a/internal/nodes/api_stream.go
+++ b/internal/nodes/api_stream.go
@@ -351,12 +351,11 @@ func (this *APIStream) handlePurgeCache(message *pb.NodeStreamMessage) error {
 	if msg.Type == "file" {
 		var keys = msg.Keys
 		for _, key := range keys {
-			keys = append(keys, key+webpCacheSuffix)
+			keys = append(keys, key+webpCacheSuffix, key+cacheMethodSuffix+"HEAD")
 			// TODO 根据实际缓存的内容进行组合
 			for _, encoding := range compressions.AllEncodings() {
 				keys = append(keys, key+compressionCacheSuffix+encoding)
 				keys = append(keys, key+webpCacheSuffix+compressionCacheSuffix+encoding)
-				keys = append(keys, key+cacheMethodSuffix+"HEAD")
 			}
 		}
 		msg.Keys = keys
diff --git a/internal/nodes/http_request_cache.go b/internal/nodes/http_request_cache.go
index 120fd6b..6543608 100644
--- a/internal/nodes/http_request_cache.go
+++ b/internal/nodes/http_request_cache.go
@@ -137,12 +137,11 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	if this.web.Cache.PurgeIsOn && strings.ToUpper(this.RawReq.Method) == "PURGE" && this.RawReq.Header.Get("X-Edge-Purge-Key") == this.web.Cache.PurgeKey {
 		this.varMapping["cache.status"] = "PURGE"
 
-		var subKeys = []string{key}
+		var subKeys = []string{key, key + cacheMethodSuffix + "HEAD"}
 		// TODO 根据实际缓存的内容进行组合
 		for _, encoding := range compressions.AllEncodings() {
 			subKeys = append(subKeys, key+compressionCacheSuffix+encoding)
 			subKeys = append(subKeys, key+webpCacheSuffix+compressionCacheSuffix+encoding)
-			subKeys = append(subKeys, key+cacheMethodSuffix+"HEAD")
 		}
 		for _, subKey := range subKeys {
 			err := storage.Delete(subKey)
diff --git a/internal/nodes/http_writer.go b/internal/nodes/http_writer.go
index 0be0799..3099086 100644
--- a/internal/nodes/http_writer.go
+++ b/internal/nodes/http_writer.go
@@ -265,10 +265,6 @@ func (this *HTTPWriter) PrepareCache(resp *http.Response, size int64) {
 
 	var expiredAt = utils.UnixTime() + life
 	var cacheKey = this.req.cacheKey
-	var method = this.req.Method()
-	if method != http.MethodGet && method != http.MethodPost {
-		cacheKey += cacheMethodSuffix + this.req.Method()
-	}
 	cacheWriter, err := storage.OpenWriter(cacheKey, expiredAt, this.StatusCode(), size, false)
 	if err != nil {
 		if !caches.CanIgnoreErr(err) {