diff --git a/controller.go b/controller.go
index 624e574a..a2943d42 100644
--- a/controller.go
+++ b/controller.go
@@ -568,6 +568,7 @@ func (c *Controller) SessionRegenerateID() {
 // DestroySession cleans session data and session cookie.
 func (c *Controller) DestroySession() {
 	c.Ctx.Input.CruSession.Flush()
+	c.Ctx.Input.CruSession = nil
 	GlobalSessions.SessionDestroy(c.Ctx.ResponseWriter, c.Ctx.Request)
 }
 
diff --git a/router.go b/router.go
index 66e7c9b1..0e1d1d32 100644
--- a/router.go
+++ b/router.go
@@ -650,7 +650,9 @@ func (p *ControllerRegister) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 			return
 		}
 		defer func() {
-			context.Input.CruSession.SessionRelease(rw)
+			if context.Input.CruSession != nil {
+				context.Input.CruSession.SessionRelease(rw)
+			}
 		}()
 	}
 
diff --git a/session/redis/sess_redis.go b/session/redis/sess_redis.go
index 5107a8d1..c46fa7cd 100644
--- a/session/redis/sess_redis.go
+++ b/session/redis/sess_redis.go
@@ -98,18 +98,13 @@ func (rs *SessionStore) SessionID() string {
 
 // SessionRelease save session values to redis
 func (rs *SessionStore) SessionRelease(w http.ResponseWriter) {
-
 	b, err := session.EncodeGob(rs.values)
 	if err != nil {
 		return
 	}
-
 	c := rs.p.Get()
 	defer c.Close()
-	// Update session value if exists or error.
-	if existed, err := redis.Bool(c.Do("EXISTS", rs.sid)); existed || err != nil {
-		c.Do("SETEX", rs.sid, rs.maxlifetime, string(b))
-	}
+	c.Do("SETEX", rs.sid, rs.maxlifetime, string(b))
 }
 
 // Provider redis session provider
diff --git a/session/redis/sess_redis_test.go b/session/redis/sess_redis_test.go
deleted file mode 100644
index 0c634428..00000000
--- a/session/redis/sess_redis_test.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2016 beego Author. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package redis
-
-import (
-	"testing"
-)
-
-func TestSessionRelease(t *testing.T) {
-
-	provider := Provider{}
-	if err := provider.SessionInit(3, "127.0.0.1:6379"); err != nil {
-		t.Fatal("init session err,", err)
-	}
-
-	sessionID := "beegosessionid_00001"
-
-	session, err := provider.SessionRegenerate("", sessionID)
-	if err != nil {
-		t.Fatal("new session error,", err)
-	}
-
-	// set item.
-	session.Set("k1", "v1")
-	// update.
-	session.SessionRelease(nil)
-
-	session, err = provider.SessionRead(sessionID)
-	if err != nil {
-		t.Fatal("read session error,", err)
-	}
-	if v1 := session.Get("k1"); v1 == nil {
-		t.Fatal("want v1 got nil")
-	} else if v, _ := v1.(string); v != "v1" {
-		t.Fatalf("want v1 got %s", v)
-	}
-
-	// delete
-	provider.SessionDestroy(sessionID)
-	session.Set("k2", "v2")
-
-	session.SessionRelease(nil)
-
-	session, err = provider.SessionRead(sessionID)
-	if err != nil {
-		t.Fatal("read session error,", err)
-	}
-	if session.Get("k1") != nil || session.Get("k2") != nil {
-		t.Fatalf("want emtpy session value,got %s,%s", session.Get("k1"), session.Get("k2"))
-	}
-
-}