diff --git a/class/core/config_api.py b/class/core/config_api.py
index e24e422f3..a6e425a39 100755
--- a/class/core/config_api.py
+++ b/class/core/config_api.py
@@ -58,6 +58,9 @@ class config_api:
         port = request.form.get('port', '')
         host_ip = request.form.get('host_ip', '')
         domain = request.form.get('domain', '')
+        sites_path = request.form.get('sites_path', '')
+        backup_path = request.form.get('backup_path', '')
+
         if domain != '':
             reg = "^([\w\-\*]{1,100}\.){1,4}(\w{1,10}|\w{1,10}\.\w{1,10})$"
             if not re.match(reg, domain):
@@ -69,6 +72,12 @@ class config_api:
         if webname != public.getConfig('title'):
             public.setConfig('title', webname)
 
+        if sites_path != public.getWwwDir():
+            public.setWwwDir(sites_path)
+
+        if backup_path != public.getWwwDir():
+            public.setBackupDir(backup_path)
+
         if port != public.getHostPort():
             import system_api
             public.setHostPort(port)
diff --git a/class/core/public.py b/class/core/public.py
index 27f2d7ac4..78dba80c5 100755
--- a/class/core/public.py
+++ b/class/core/public.py
@@ -55,9 +55,17 @@ def getServerDir():
 
 
 def getWwwDir():
+    file = getRunDir() + '/data/site.pl'
+    if os.path.exists(file):
+        return readFile(file).strip()
     return getRootDir() + '/wwwroot'
 
 
+def setWwwDir(wdir):
+    file = getRunDir() + '/data/site.pl'
+    return writeFile(file, wdir)
+
+
 def getLogsDir():
     return getRootDir() + '/wwwlogs'
 
@@ -66,6 +74,11 @@ def getBackupDir():
     return getRootDir() + '/backup'
 
 
+def setBackupDir(bdir):
+    file = getRunDir() + '/data/backup.pl'
+    return writeFile(file, wdir)
+
+
 def getOs():
     return sys.platform
 
diff --git a/data/site.pl b/data/site.pl
new file mode 100644
index 000000000..220fce19d
--- /dev/null
+++ b/data/site.pl
@@ -0,0 +1 @@
+/Users/midoks/Desktop/fwww/wwwroot
\ No newline at end of file
diff --git a/route/templates/default/config.html b/route/templates/default/config.html
index 0dd4712cf..620349417 100755
--- a/route/templates/default/config.html
+++ b/route/templates/default/config.html
@@ -66,7 +66,7 @@
 
 						<p class="mtb15">
 							<span class="set-tit text-right" title="默认建站目录">默认备份目录</span>
-							<input name="sites_path" class="inputtxt bt-input-text" type="text" value="{{data['backup_path']}}">
+							<input name="backup_path" class="inputtxt bt-input-text" type="text" value="{{data['backup_path']}}">
 							<span class="set-info c7">网站和数据库的备份目录!</span>
 						</p>