diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 23fb0227b..dff5db31f 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -23,7 +23,7 @@ class ApplicationController < ActionController::Base
 
 	# 所有请求必须合法签名
 	def check_sign
-		unless Rails.env.development?
+		if params[:client_key]
 			timestamp = params[:timestamp]
 			sign = Digest::MD5.hexdigest("#{OPENKEY}#{timestamp}")
 			tip_exception(501, "请求不合理") if sign != params[:client_key]