diff --git a/_server/MotaAction.g4 b/_server/MotaAction.g4
index a23e90fb..a7dc1ce6 100644
--- a/_server/MotaAction.g4
+++ b/_server/MotaAction.g4
@@ -432,6 +432,8 @@ action
     |   strokePolygon_s
     |   fillEllipse_s
     |   strokeEllipse_s
+    |   fillArc_s
+    |   strokeArc_s
     |   drawImage_s
     |   drawImage_1_s
     |   drawIcon_s
@@ -2368,6 +2370,35 @@ var code = '{"type": "strokeEllipse", "x": '+PosString_0+', "y": '+PosString_1+'
 return code;
 */;
 
+fillArc_s
+    :   '绘制扇形' '中心' 'x' PosString 'y' PosString '半径' PosString '起点角度' PosString '终点角度' PosString '颜色' ColorString? Colour Newline
+
+/* fillArc_s
+tooltip : fillArc：绘制扇形
+helpUrl : https://h5mota.com/games/template/_docs/#/event?id=fillEllipse%ef%bc%9a%e7%bb%98%e5%88%b6%e5%9c%86
+colour : this.subColor
+default : ["0","0","100","0","90","",null,""]
+ColorString_0 = ColorString_0 ? (', "style": ['+ColorString_0+']') : '';
+var code = '{"type": "fillArc", "x": '+PosString_0+', "y": '+PosString_1+', "r": '+PosString_2+', "start": '+PosString_3+', "end": '+PosString_4+ColorString_0+'},\n';
+return code;
+*/;
+
+
+strokeArc_s
+    :   '绘制弧' '中心' 'x' PosString 'y' PosString '半径' PosString '起点角度' PosString '终点角度' PosString '颜色' ColorString? Colour '线宽' IntString? Newline
+
+/* strokeArc_s
+tooltip : strokeArc：绘制弧
+helpUrl : https://h5mota.com/games/template/_docs/#/event?id=fillEllipse%ef%bc%9a%e7%bb%98%e5%88%b6%e5%9c%86
+colour : this.subColor
+default : ["0","0","100","0","90","",null,""]
+ColorString_0 = ColorString_0 ? (', "style": ['+ColorString_0+']') : '';
+IntString_0 = IntString_0 ? (', "lineWidth": '+IntString_0) : '';
+var code = '{"type": "strokeArc", "x": '+PosString_0+', "y": '+PosString_1+', "r": '+PosString_2+', "start": '+PosString_3+', "end": '+PosString_4+ColorString_0+IntString_0+'},\n';
+return code;
+*/;
+
+
 
 drawImage_s
     :   '绘制图片' EvalString '起点像素' 'x' PosString 'y' PosString '宽' PosString? '高' PosString? Newline
@@ -3702,6 +3733,18 @@ ActionParser.prototype.parseAction = function() {
         data.x, data.y, data.a, data.b, data.angle, data.style, 'rgba('+data.style+')', data.lineWidth, this.next
       ]);
       break;
+    case "fillArc": // 绘制弧
+      data.style = this.Colour(data.style);
+      this.next = MotaActionBlocks['fillArc_s'].xmlText([
+        data.x, data.y, data.r, data.start, data.end, data.style, 'rgba('+data.style+')', this.next
+      ]);
+      break;
+    case "strokeArc": // 绘制弧
+      data.style = this.Colour(data.style);
+      this.next = MotaActionBlocks['strokeArc_s'].xmlText([
+        data.x, data.y, data.r, data.start, data.end, data.style, 'rgba('+data.style+')', data.lineWidth, this.next
+      ]);
+      break;
     case "drawImage": // 绘制图片
       if (data.x1 != null && data.y1 != null && data.w1 != null && data.h1 != null) {
         this.next = MotaActionBlocks['drawImage_1_s'].xmlText([
diff --git a/_server/editor_blockly.js b/_server/editor_blockly.js
index f67bca45..f3d74b07 100644
--- a/_server/editor_blockly.js
+++ b/_server/editor_blockly.js
@@ -204,6 +204,8 @@ editor_blockly = function () {
       MotaActionBlocks['strokePolygon_s'].xmlText(),
       MotaActionBlocks['fillEllipse_s'].xmlText(),
       MotaActionBlocks['strokeEllipse_s'].xmlText(),
+      MotaActionBlocks['fillArc_s'].xmlText(),
+      MotaActionBlocks['strokeArc_s'].xmlText(),
       MotaActionBlocks['drawImage_s'].xmlText(),
       MotaActionBlocks['drawImage_1_s'].xmlText(),
       MotaActionBlocks['drawIcon_s'].xmlText(),
@@ -706,7 +708,7 @@ function omitedcheckUpdateFunction(event) {
         var types = [
             "previewUI_s", "clearMap_s", "clearMap_1_s", "setAttribute_s", "fillText_s",
             "fillBoldText_s", "fillRect_s", "strokeRect_s", "drawLine_s",
-            "drawArrow_s", "fillPolygon_s", "strokePolygon_s", "fillEllipse_s", "strokeEllipse_s",
+            "drawArrow_s", "fillPolygon_s", "strokePolygon_s", "fillEllipse_s", "strokeEllipse_s", "fillArc_s", "strokeArc_s",
             "drawImage_s", "drawImage_1_s", "drawIcon_s", "drawBackground_s", "drawSelector_s", "drawSelector_1_s",
             "waitContext_2"
         ];
diff --git a/libs/events.js b/libs/events.js
index d0982ade..b7601032 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -1123,11 +1123,13 @@ events.prototype.__precompile_getArray = function () {
     ];
     var uievents = [
         "clearMap", "fillText", "fillBoldText", "fillRect", "strokeRect", "fillEllipse", "strokeEllipse",
-        "drawIcon", "drawSelector", "drawBackground",
+        "fillArc", "strokeArc", "drawIcon", "drawSelector", "drawBackground",
     ];
     var others = {
         "fillEllipse": ["a", "b"],
         "strokeEllipse": ["a", "b"],
+        "fillArc": ["r", "start", "end"],
+        "strokeArc": ["r", "start", "end"],
         "drawLine": ["x1", "y1", "x2", "y2"],
         "drawArrow": ["x1", "y1", "x2", "y2"],
         "drawImage": ["x", "y", "w", "h", "x1", "y1", "w1", "h1"],
@@ -2222,6 +2224,14 @@ events.prototype._action_strokeEllipse = function (data, x, y, prefix) {
     this.__action_doUIEvent(data);
 }
 
+events.prototype._action_fillArc = function (data, x, y, prefix) {
+    this.__action_doUIEvent(data);
+}
+
+events.prototype._action_strokeArc = function (data, x, y, prefix) {
+    this.__action_doUIEvent(data);
+}
+
 events.prototype._action_drawLine = function (data, x, y, prefix) {
     this.__action_doUIEvent(data);
 }
diff --git a/libs/ui.js b/libs/ui.js
index 642a4776..204796d0 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -279,6 +279,39 @@ ui.prototype._uievent_strokeEllipse = function (data) {
         core.calValue(data.b), (core.calValue(data.angle) || 0) * Math.PI / 180, data.style, data.lineWidth);
 }
 
+ui.prototype.fillArc = function (name, x, y, r, start, end, style) {
+    if (style) core.setFillStyle(name, style);
+    var ctx = this.getContextByName(name);
+    if (!ctx) return;
+    ctx.beginPath();
+    ctx.moveTo(x, y);
+    ctx.arc(x, y, r, start, end);
+    ctx.closePath();
+    ctx.fill();
+}
+
+ui.prototype._uievent_fillArc = function (data) {
+    this._createUIEvent();
+    this.fillArc('uievent', core.calValue(data.x), core.calValue(data.y), core.calValue(data.r),
+        (core.calValue(data.start) || 0) * Math.PI / 180, (core.calValue(data.end) || 0) * Math.PI / 180, data.style);
+}
+
+ui.prototype.strokeArc = function (name, x, y, r, start, end, style, lineWidth) {
+    if (style) core.setStrokeStyle(name, style);
+    if (lineWidth) core.setLineWidth(name, lineWidth);
+    var ctx = this.getContextByName(name);
+    if (!ctx) return;
+    ctx.beginPath();
+    ctx.arc(x, y, r, start, end);
+    ctx.stroke();
+}
+
+ui.prototype._uievent_strokeArc = function (data) {
+    this._createUIEvent();
+    this.strokeArc('uievent', core.calValue(data.x), core.calValue(data.y), core.calValue(data.r),
+        (core.calValue(data.start) || 0) * Math.PI / 180, (core.calValue(data.end) || 0) * Math.PI / 180, data.style, data.lineWidth);
+}
+
 ////// 在某个canvas上绘制一条线 //////
 ui.prototype.drawLine = function (name, x1, y1, x2, y2, style, lineWidth) {
     if (style) core.setStrokeStyle(name, style);
diff --git a/v2.x-final更新.txt b/v2.x-final更新.txt
index f795c31f..7cbd5c2f 100644
--- a/v2.x-final更新.txt
+++ b/v2.x-final更新.txt
@@ -134,7 +134,7 @@
 70. “显隐勇士”事件指令希望加个淡入淡出时间参数
 （不处理，请用等待事件） 1. 希望给core.drawTip()和core.playSound()出个同步版本，目前只有异步版本，后者如果要模拟同步就得绑在一个透明动画上
 （已完成！） 72. “绘制描边文本”事件希望加一个“描边颜色”参数，目前只能描黑边
-73. 画弧既然有现成的API，那建议也作为UI绘制事件提供。甚至希望提供画椭圆功能（长短轴水平或铅直的那种）参数为中心坐标和长短轴长度
+（已完成！） 73. 画弧既然有现成的API，那建议也作为UI绘制事件提供。甚至希望提供画椭圆功能（长短轴水平或铅直的那种）参数为中心坐标和长短轴长度
 （已完成！） 74. “设置画布属性”的基准线建议增加'hanging'和'ideographic'这两种模式
 （已完成！） 75. 建议修复“绘制多行文本”时行距比字号大不太多会导致各行下缘丢失的bug（加大行距又会导致第一行的纵坐标难以估计），此bug在道具商店和1.3倍行距英文看的很明显
 （已完成！） 76. （来自群友）建议给第一代全局商店像“显示选择项”一样提供图标、颜色和出现条件