diff --git a/enforcer_interface.go b/enforcer_interface.go
index 9ff7242..9320778 100644
--- a/enforcer_interface.go
+++ b/enforcer_interface.go
@@ -75,6 +75,7 @@ type IEnforcer interface {
 	GetQRCode(QRCodeId string) *model.QRCode
 	GetQRCodeState(QRCodeId string) model.QRCodeState
 	GetQRCodeTimeout(QRCodeId string) int64
+	DeleteQRCode(QRCodeId string) error
 	Scanned(QRCodeId string, loginId string) (string, error)
 	ConfirmAuth(QRCodeTempToken string) error
 	CancelAuth(QRCodeTempToken string) error
diff --git a/enforcer_internal_api.go b/enforcer_internal_api.go
index 393c78e..2df2037 100644
--- a/enforcer_internal_api.go
+++ b/enforcer_internal_api.go
@@ -209,13 +209,17 @@ func (e *Enforcer) getAndCheckQRCodeState(QRCodeId string, want model.QRCodeStat
 }
 
 func (e *Enforcer) getQRCodeTimeout(id string) int64 {
-	return e.adapter.GetTimeout(id)
+	return e.adapter.GetTimeout(e.spliceQRCodeKey(id))
 }
 
 func (e *Enforcer) updateQRCode(id string, qrCode *model.QRCode) error {
 	return e.adapter.Update(e.spliceQRCodeKey(id), qrCode)
 }
 
+func (e *Enforcer) deleteQRCode(id string) error {
+	return e.adapter.Delete(e.spliceQRCodeKey(id))
+}
+
 func (e *Enforcer) getByTempToken(service string, tempToken string) string {
 	return e.adapter.GetStr(e.spliceTempTokenKey(service, tempToken))
 }
diff --git a/enforcer_manager_api.go b/enforcer_manager_api.go
index 3540f32..b4ccb0e 100644
--- a/enforcer_manager_api.go
+++ b/enforcer_manager_api.go
@@ -319,3 +319,7 @@ func (e *Enforcer) GetQRCodeState(QRCodeId string) model.QRCodeState {
 func (e *Enforcer) GetQRCodeTimeout(QRCodeId string) int64 {
 	return e.getQRCodeTimeout(QRCodeId)
 }
+
+func (e *Enforcer) DeleteQRCode(QRCodeId string) error {
+	return e.deleteQRCode(QRCodeId)
+}