diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index afbbdab2f..2e7f39056 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -387,7 +387,7 @@ func replaceContent(content string) (result string) {
 	}
 	if strings.Contains(result, byteSignQrCenter) && strings.Contains(result, byteSignQrCenterE) {
 		if qrs := regexpQrc.FindStringSubmatch(result); len(qrs) > 0 {
-			lenqr = len(qrs[1])
+			lenqr = len(qrs[1]) / 2
 			hexLenqr = fmt.Sprintf("%x", lenqr)
 			if len(hexLenqr) < 2 {
 				hexLenqr = "0" + hexLenqr
@@ -398,7 +398,7 @@ func replaceContent(content string) (result string) {
 	}
 	if strings.Contains(result, byteSignQrLeft) && strings.Contains(result, byteSignQrLeftE) {
 		if qrs := regexpQrl.FindStringSubmatch(result); len(qrs) > 0 {
-			lenqr = len(qrs[1])
+			lenqr = len(qrs[1]) / 2
 			hexLenqr = fmt.Sprintf("%x", lenqr)
 			if len(hexLenqr) < 2 {
 				hexLenqr = "0" + hexLenqr
@@ -409,7 +409,7 @@ func replaceContent(content string) (result string) {
 	}
 	if strings.Contains(result, byteSignQrRight) && strings.Contains(result, byteSignQrRightE) {
 		if qrs := regexpQrr.FindStringSubmatch(result); len(qrs) > 0 {
-			lenqr = len(qrs[1])
+			lenqr = len(qrs[1]) / 2
 			hexLenqr = fmt.Sprintf("%x", lenqr)
 			if len(hexLenqr) < 2 {
 				hexLenqr = "0" + hexLenqr