diff --git a/boards/default_src/micropython/blocks/iot.js b/boards/default_src/micropython/blocks/iot.js
index 69931a46..e909daba 100644
--- a/boards/default_src/micropython/blocks/iot.js
+++ b/boards/default_src/micropython/blocks/iot.js
@@ -332,6 +332,13 @@ export const IOT_MIXIO_PUBLISH = {
             .appendField(Blockly.Msg.MIXLY_EMQX_PUBLISH_TOPIC);
         this.appendValueInput('MSG')
             .appendField(Blockly.Msg.HTML_BODY);
+        this.appendDummyInput()
+            .appendField(Blockly.Msg.MIXLY_Service_quality_display)
+            .appendField(new Blockly.FieldDropdown([
+                [Blockly.Msg.MIXLY_AT_MOST_ONCE,"0"],
+                [Blockly.Msg.MIXLY_AT_LEAST_ONCE,"1"],
+                [Blockly.Msg.MIXLY_ONLY_ONCE,"2"]
+            ]),"quality")
         this.setInputsInline(true);
         this.setPreviousStatement(true);
         this.setNextStatement(true);
diff --git a/boards/default_src/micropython/generators/iot.js b/boards/default_src/micropython/generators/iot.js
index 9405df52..94f49720 100644
--- a/boards/default_src/micropython/generators/iot.js
+++ b/boards/default_src/micropython/generators/iot.js
@@ -90,8 +90,9 @@ export const iot_mixio_connect = function (_, generator) {
 export const IOT_MIXIO_PUBLISH = function (_, generator) {
     var topic = generator.valueToCode(this, 'TOPIC', generator.ORDER_ATOMIC);
     var msg = generator.valueToCode(this, 'MSG', generator.ORDER_ATOMIC);
+    var q = this.getFieldValue('quality');
     generator.definitions_['import_mixiot'] = "import mixiot";
-    var code = 'mqtt_client.publish(MQTT_USR_PRJ + ' + topic + ', ' + msg + ')\n';
+    var code = 'mqtt_client.publish(MQTT_USR_PRJ + ' + topic + ', ' + msg + ', qos='+ q +')\n';
     return code;
 }
 
diff --git a/boards/default_src/python/blocks/storage.js b/boards/default_src/python/blocks/storage.js
index 11330b5c..70e932ef 100644
--- a/boards/default_src/python/blocks/storage.js
+++ b/boards/default_src/python/blocks/storage.js
@@ -26,7 +26,15 @@ export const storage_fileopen = {
                 [Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_READ, 'r'],
                 [Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_WRITE, 'w'],
                 [Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_BIT_READ, 'rb'],
-                [Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_BIT_WRITE, 'wb']
+                [Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_BIT_WRITE, 'wb'],
+                [Blockly.Msg.MIXLY_ADD, 'a'],
+                [Blockly.Msg.MATH_BIN + Blockly.Msg.MIXLY_ADD, 'ab'],
+                [Blockly.Msg.MIXLY_R_W ,'r+'],
+                [Blockly.Msg.MATH_BIN + Blockly.Msg.MIXLY_R_W ,'rb+'],
+                [Blockly.Msg.MIXLY_W_R ,'w+'],
+                [Blockly.Msg.MATH_BIN + Blockly.Msg.MIXLY_W_R ,'wb+'],
+                [Blockly.Msg.MIXLY_A_R ,'a+'],
+                [Blockly.Msg.MATH_BIN + Blockly.Msg.MIXLY_A_R ,'ab+']
             ]), 'MODE');
         this.appendValueInput("FILE")
             .appendField(Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_AS);
diff --git a/common/msg/blockly/en.js b/common/msg/blockly/en.js
index cdcdac05..a568cfb0 100644
--- a/common/msg/blockly/en.js
+++ b/common/msg/blockly/en.js
@@ -3978,4 +3978,12 @@ En.MIXLY_MICROPHONE_AMPLIFICATION = 'microphone amplification';
 En.MIXLY_MUSIC_VOLUME_SET = 'set music volume';
 En.MIXLY_HOTSPOT= 'hot spot';
 En.MIXLY_NAME = 'name';
+En.MIXLY_Service_quality_display= "service quality",
+En.MIXLY_AT_MOST_ONCE= "At most once",
+En.MIXLY_AT_LEAST_ONCE= "At least once",
+En.MIXLY_ONLY_ONCE= "Only once",
+En.MIXLY_ADD= "Append",
+En.MIXLY_R_W= "Readable and Writable, Error if File Does Not Exist",
+En.MIXLY_W_R= "Readable and Writable, Create if File Does Not Exist",
+En.MIXLY_A_R= "Appendable and Writable, Create if File Does Not Exist"
 })();
diff --git a/common/msg/blockly/zh-hans.js b/common/msg/blockly/zh-hans.js
index d15f443c..c5023d3a 100644
--- a/common/msg/blockly/zh-hans.js
+++ b/common/msg/blockly/zh-hans.js
@@ -4137,4 +4137,12 @@ ZhHans.MIXLY_MICROPHONE_AMPLIFICATION = '麦克风放大倍数';
 ZhHans.MIXLY_MUSIC_VOLUME_SET = '音量调节';
 ZhHans.MIXLY_HOTSPOT= '热点';
 ZhHans.MIXLY_NAME = '名称';
+ZhHans.MIXLY_Service_quality_display = '服务质量';
+ZhHans.MIXLY_AT_MOST_ONCE = '至多一次';
+ZhHans.MIXLY_AT_LEAST_ONCE = '至少一次';
+ZhHans.MIXLY_ONLY_ONCE = '仅一次';
+ZhHans.MIXLY_ADD = '追加';
+ZhHans.MIXLY_R_W ='可读可写，文件若不存在就报错';
+ZhHans.MIXLY_W_R = '可读可写，文件若不存在就创建';
+ZhHans.MIXLY_A_R = '可追加可写，文件若不存在就创建';
 })(); 
\ No newline at end of file
diff --git a/common/msg/blockly/zh-hant.js b/common/msg/blockly/zh-hant.js
index 846b81e5..01a58bfe 100644
--- a/common/msg/blockly/zh-hant.js
+++ b/common/msg/blockly/zh-hant.js
@@ -4132,4 +4132,12 @@ ZhHant.MIXLY_MICROPHONE_AMPLIFICATION = '麥克風放大倍數';
 ZhHant.MIXLY_MUSIC_VOLUME_SET = '音量調節';
 ZhHant.MIXLY_HOTSPOT= '熱點';
 ZhHant.MIXLY_NAME = '名稱';
+ZhHant.MIXLY_Service_quality_display= "服務質量";
+ZhHant.MIXLY_AT_MOST_ONCE= "至多一次";
+ZhHant.MIXLY_AT_LEAST_ONCE= "至少一次";
+ZhHant.MIXLY_ONLY_ONCE= "僅一次";
+ZhHant.MIXLY_ADD= "追加";
+ZhHant.MIXLY_R_W= "可讀可寫，文件若不存在就報錯";
+ZhHant.MIXLY_W_R= "可讀可寫，文件若不存在就創建";
+ZhHant.MIXLY_A_R= "可追加可寫，文件若不存在就創建";
 })();