diff --git a/plugins/postgresql/class/pg.py b/plugins/postgresql/class/pg.py
index c05f940a5..854b78fed 100755
--- a/plugins/postgresql/class/pg.py
+++ b/plugins/postgresql/class/pg.py
@@ -20,7 +20,7 @@ class ORM:
     __DB_CUR = None
     __DB_ERR = None
     __DB_CNF = '/etc/postgresql.cnf'
-    __DB_SOCKET = '/tmp/mysql.sock'
+    __DB_SOCKET = '/tmp/.s.PGSQL.5432'
     __DB_CHARSET = "utf8"
 
     __DB_TABLE = ""             # 被操作的表名称
@@ -35,26 +35,34 @@ class ORM:
         '''连接数据库'''
         try:
 
-            try:
-                self.__DB_CONN = psycopg2.connect(database='postgres',
-                                                  user=self.__DB_USER,
-                                                  password=self.__DB_PASS,
-                                                  host=self.__DB_HOST,
-                                                  port=int(self.__DB_PORT))
-            except Exception as e:
-                self.__DB_HOST = '127.0.0.1'
-                self.__DB_CONN = psycopg2.connect(database='postgres',
-                                                  user=self.__DB_USER,
-                                                  password=self.__DB_PASS,
-                                                  host=self.__DB_HOST,
-                                                  port=int(self.__DB_PORT))
-            except Exception as e:
-                self.__DB_HOST = mw.getLocalIp()
-                self.__DB_CONN = psycopg2.connect(database='postgres',
-                                                  user=self.__DB_USER,
-                                                  password=self.__DB_PASS,
-                                                  host=self.__DB_HOST,
-                                                  port=int(self.__DB_PORT))
+            if os.path.exists(self.__DB_SOCKET):
+                try:
+                    self.__DB_CONN = psycopg2.connect(database='postgres',
+                                                      user=self.__DB_USER,
+                                                      password=self.__DB_PASS,
+                                                      host=self.__DB_HOST,
+                                                      port=int(self.__DB_PORT))
+                except Exception as e:
+                    self.__DB_HOST = '127.0.0.1'
+                    self.__DB_CONN = psycopg2.connect(database='postgres',
+                                                      user=self.__DB_USER,
+                                                      password=self.__DB_PASS,
+                                                      host=self.__DB_HOST,
+                                                      port=int(self.__DB_PORT))
+            else:
+                try:
+                    self.__DB_CONN = psycopg2.connect(database='postgres',
+                                                      user=self.__DB_USER,
+                                                      password=self.__DB_PASS,
+                                                      host=self.__DB_HOST,
+                                                      port=int(self.__DB_PORT))
+                except Exception as e:
+                    self.__DB_HOST = '127.0.0.1'
+                    self.__DB_CONN = psycopg2.connect(database='postgres',
+                                                      user=self.__DB_USER,
+                                                      password=self.__DB_PASS,
+                                                      host=self.__DB_HOST,
+                                                      port=int(self.__DB_PORT))
 
             self.__DB_CONN.autocommit = True
             self.__DB_CUR = self.__DB_CONN.cursor()
diff --git a/plugins/postgresql/index.py b/plugins/postgresql/index.py
index dfa403af0..0f9cf5971 100755
--- a/plugins/postgresql/index.py
+++ b/plugins/postgresql/index.py
@@ -178,7 +178,7 @@ def pgDb():
 
     db.setPort(getDbPort())
     db.setPwd(pSqliteDb('config').where('id=?', (1,)).getField('pg_root'))
-    db.setHostAddr(getSocketFile())
+    db.setSocket(getSocketFile())
     return db