diff --git a/src/ttf/table/glyfwriter.js b/src/ttf/table/glyfwriter.js
index 2030db8..8dac8f3 100644
--- a/src/ttf/table/glyfwriter.js
+++ b/src/ttf/table/glyfwriter.js
@@ -86,8 +86,6 @@ define(
             return size;
         }
 
-
-
         /**
          * 获取flags
          * 
@@ -100,18 +98,21 @@ define(
                 return glyfSupport;
             }
 
-
-            var prev = {};
             var flags = [];
             var xCoord = [];
             var yCoord = [];
-            var first = true;
 
-            glyf.contours.forEach(function(contour) {
-                contour.forEach(function(p) {
+            var contours = glyf.contours, contour, prev, first = true;
+            for(var j = 0, cl = contours.length; j < cl; j++) {
+                contour = contours[j];
+                for(var i = 0, l = contour.length; i < l; i++) {
+
+                    p = contour[i];
+
                     if (first) {
                         xCoord.push(p.x);
                         yCoord.push(p.y);
+                        first = false;
                     }
                     else {
                         xCoord.push(p.x - prev.x);
@@ -119,9 +120,8 @@ define(
                     }
                     flags.push(p.onCurve ? glyFlag.ONCURVE : 0);
                     prev = p;
-                    first = false;
-                });
-            });
+                }
+            }
 
             // compress
             var flagsC = [];
diff --git a/src/ttf/ttfwriter.js b/src/ttf/ttfwriter.js
index 35169d3..b40a90b 100644
--- a/src/ttf/ttfwriter.js
+++ b/src/ttf/ttfwriter.js
@@ -16,6 +16,8 @@ define(
         var supportTables = require('./table/support');
         var checkSum = require('./util/checkSum');
 
+        var reduceGlyf = require('./util/reduceGlyf');
+
         // 支持写的表, 注意表顺序
         var tableList = [
             'OS/2',
@@ -63,6 +65,10 @@ define(
                 if (glyf.unicode) {
                     glyf.unicode = glyf.unicode.sort();
                 }
+
+                if (!glyf.compound && glyf.contours) {
+                    reduceGlyf(glyf);
+                }
             });
 
         }
diff --git a/src/ttf/util/reduceGlyf.js b/src/ttf/util/reduceGlyf.js
new file mode 100644
index 0000000..d4d6b5e
--- /dev/null
+++ b/src/ttf/util/reduceGlyf.js
@@ -0,0 +1,66 @@
+/**
+ * @file reduceGlyf.js
+ * @author mengke01
+ * @date 
+ * @description
+ * 缩减glyf大小，去除冗余节点
+ */
+
+
+define(
+    function(require) {
+
+        /**
+         * 判断点是否多余的点
+         * 
+         * @param {Object} p 当前
+         * @param {Object} prev 上一个
+         * @param {Object} next 下一个
+         * @return {boolean}
+         */
+        function redundant(p, prev, next) {
+
+            // 是否重合的点, 只有两个点同在曲线上或者同不在曲线上移出
+            if ( Math.pow(p.x - next.x, 2) + Math.pow(p.y - next.y, 2) <= 1) {
+                return !p.onCurve ^ !!next.onCurve;
+            }
+            
+            // 三点同线
+            // else if ((next.y - p.y) * (prev.x - p.x) == (prev.y - p.y) * (next.x - p.x)) {
+            //     return p.onCurve && prev.onCurve && next.onCurve;
+            // }
+
+            return false;
+        }
+
+        /**
+         * 缩减glyf，去除冗余节点
+         * 
+         * @param {Object} glyf glyf对象
+         * @return {Object} glyf对象
+         */
+        function reduceGlyf(glyf) {
+
+            var contours = glyf.contours, contour, prev;
+            for(var j = 0, cl = contours.length; j < cl; j++) {
+                contour = contours[j];
+
+                for(var i = contour.length - 1, last = i; i >= 0; i--) {
+
+                    // 这里注意逆序
+                    next = i === last ? contour[0] : contour[i + 1];
+                    prev = i === 0 ? contour[last] : contour[i - 1];
+                    p = contour[i];
+
+                    if (redundant(p, prev, next)) {
+                        contour.splice(i, 1);
+                        last--;
+                        continue;
+                    }
+                }
+            }
+        }
+
+        return reduceGlyf;
+    }
+);