diff --git a/internal/nodes/http_request_cache.go b/internal/nodes/http_request_cache.go
index 5992fbf..f850a35 100644
--- a/internal/nodes/http_request_cache.go
+++ b/internal/nodes/http_request_cache.go
@@ -208,11 +208,15 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 	}
 
 	// 设置cache.age变量
-	this.varMapping["cache.age"] = strconv.FormatInt(reader.ExpiresAt()-utils.UnixTime(), 10)
+	var age = strconv.FormatInt(reader.ExpiresAt()-utils.UnixTime(), 10)
+	this.varMapping["cache.age"] = age
 
 	if addStatusHeader {
 		this.writer.Header().Set("X-Cache", "HIT, "+refType+", "+reader.TypeName())
 	}
+	if this.web.Cache.AddAgeHeader {
+		this.writer.Header().Set("Age", age)
+	}
 
 	// ETag
 	// 这里强制设置ETag，如果先前源站设置了ETag，将会被覆盖，避免因为源站的ETag导致源站返回304 Not Modified