diff --git a/src/platforms/h5/service/api/device/get-system-info.js b/src/platforms/h5/service/api/device/get-system-info.js
index 14ae366c6edc73e53799a5077e00ef957ba50749..78c6a21b82642b5013d5505dfdab3e6f569425a4 100644
--- a/src/platforms/h5/service/api/device/get-system-info.js
+++ b/src/platforms/h5/service/api/device/get-system-info.js
@@ -228,7 +228,7 @@ export function getSystemInfoSync () {
     browserName,
     browseVersion,
     osLanguage: language,
-    osName: osname,
+    osName: osname.toLocaleLowerCase(),
     osVersion: osversion,
     hostLanguage: language,
     version: __uniConfig.appVersion,
diff --git a/src/platforms/mp-weixin/helpers/enhance-system-info.js b/src/platforms/mp-weixin/helpers/enhance-system-info.js
index b7acd8cf33a749c1da3b0effb3c79e3663b6acc7..05317a3f200cc1fe641de549ed1a5af504691b68 100644
--- a/src/platforms/mp-weixin/helpers/enhance-system-info.js
+++ b/src/platforms/mp-weixin/helpers/enhance-system-info.js
@@ -34,7 +34,7 @@ export function populateParameters (result) {
   let osName = ''
   let osVersion = ''
   if (__PLATFORM__ === 'mp-alipay') {
-    osName = platform.toLocaleLowerCase()
+    osName = platform
     osVersion = system
   } else {
     osName = system.split(' ')[0] || ''
@@ -94,7 +94,7 @@ export function populateParameters (result) {
     deviceBrand,
     deviceModel: model,
     deviceType,
-    osName,
+    osName: osName.toLocaleLowerCase(),
     osVersion,
     osLanguage: language,
     osTheme: theme,