diff --git a/conf/wide.go b/conf/wide.go
index a45635f..978662c 100644
--- a/conf/wide.go
+++ b/conf/wide.go
@@ -84,8 +84,8 @@ var Docker bool
 const DockerImageGo = "golang"
 
 // Load loads the Wide configurations from wide.json and users' configurations from users/{userId}.json.
-func Load(confPath, confData, confServer, confLogLevel string, confSiteStatCode template.HTML) {
-	initWide(confPath, confData, confServer, confLogLevel, confSiteStatCode)
+func Load(confPath, confData, confServer, confLogLevel, confReadOnly string, confSiteStatCode template.HTML) {
+	initWide(confPath, confData, confServer, confLogLevel, confReadOnly, confSiteStatCode)
 	initUsers()
 
 	cmd := exec.Command("docker", "version")
@@ -155,7 +155,7 @@ func initUsers() {
 	initCustomizedConfs()
 }
 
-func initWide(confPath, confData, confServer, confLogLevel string, confSiteStatCode template.HTML) {
+func initWide(confPath, confData, confServer, confLogLevel, confReadOnly string, confSiteStatCode template.HTML) {
 	bytes, err := ioutil.ReadFile(confPath)
 	if nil != err {
 		logger.Error(err)
@@ -219,6 +219,10 @@ func initWide(confPath, confData, confServer, confLogLevel string, confSiteStatC
 		Wide.Server = confServer
 	}
 
+	if "" != confReadOnly {
+		Wide.ReadOnly, _ = strconv.ParseBool(confReadOnly)
+	}
+
 	// SiteStatCode
 	if "" != confSiteStatCode {
 		Wide.SiteStatCode = confSiteStatCode
diff --git a/main.go b/main.go
index 8e6f86e..394aa6d 100644
--- a/main.go
+++ b/main.go
@@ -50,6 +50,7 @@ func init() {
 	confData := flag.String("data", "", "path of data dir")
 	confServer := flag.String("server", "", "this will overwrite Wide.Server if specified")
 	confLogLevel := flag.String("log_level", "", "this will overwrite Wide.LogLevel if specified")
+	confReadOnly := flag.String("readonly", "", "this will overrite Wide.ReadOnly if specified")
 	confSiteStatCode := flag.String("site_stat_code", "", "this will overrite Wide.SiteStatCode if specified")
 
 	flag.Parse()
@@ -66,7 +67,7 @@ func init() {
 
 	i18n.Load()
 	event.Load()
-	conf.Load(*confPath, *confData, *confServer, *confLogLevel, template.HTML(*confSiteStatCode))
+	conf.Load(*confPath, *confData, *confServer, *confLogLevel, *confReadOnly, template.HTML(*confSiteStatCode))
 
 	conf.FixedTimeCheckEnv()
 	session.FixedTimeSave()