diff --git a/ios/sdk/WeexSDK/Sources/Component/WXTextComponent.m b/ios/sdk/WeexSDK/Sources/Component/WXTextComponent.m
index 5cdfd3d52f..65f7ae3079 100644
--- a/ios/sdk/WeexSDK/Sources/Component/WXTextComponent.m
+++ b/ios/sdk/WeexSDK/Sources/Component/WXTextComponent.m
@@ -131,6 +131,7 @@ @implementation WXTextComponent
     
     pthread_mutex_t _ctAttributedStringMutex;
     pthread_mutexattr_t _propertMutexAttr;
+    BOOL _observerIconfont;
 }
 
 + (void)setRenderUsingCoreText:(BOOL)usingCoreText
@@ -187,7 +188,7 @@ - (BOOL)useCoreText
 
 - (void)dealloc
 {
-    if (_fontFamily) {
+    if (_fontFamily && _observerIconfont) {
         [[NSNotificationCenter defaultCenter] removeObserver:self name:WX_ICONFONT_DOWNLOAD_NOTIFICATION object:nil];
     }
     pthread_mutex_destroy(&_ctAttributedStringMutex);
@@ -250,7 +251,11 @@ - (void)fillCSSStyles:(NSDictionary *)styles
     WX_STYLE_FILL_TEXT_PIXEL(letterSpacing, letterSpacing, YES)
     WX_STYLE_FILL_TEXT(wordWrap, wordWrap, NSString, YES);
     WX_STYLE_FILL_TEXT(direction, direction, NSString, YES)
-    
+    if (_fontFamily && !_observerIconfont) {
+        // notification received when custom icon font file download finish
+        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(repaintText:) name:WX_ICONFONT_DOWNLOAD_NOTIFICATION object:nil];
+        _observerIconfont = YES;
+    }
     UIEdgeInsets padding = {
         WXFloorPixelValue(self.cssNode->style.padding[CSS_TOP] + self.cssNode->style.border[CSS_TOP]),
         WXFloorPixelValue(self.cssNode->style.padding[CSS_LEFT] + self.cssNode->style.border[CSS_LEFT]),
@@ -381,6 +386,9 @@ - (NSAttributedString *)ctAttributedString
     pthread_mutex_lock(&(_ctAttributedStringMutex));
     if (!_ctAttributedString) {
         _ctAttributedString = [self buildCTAttributeString];
+        WXPerformBlockOnComponentThread(^{
+            [self.weexInstance.componentManager startComponentTasks];
+        });
     }
     attributedString = [_ctAttributedString copy];
     pthread_mutex_unlock(&(_ctAttributedStringMutex));
@@ -414,11 +422,6 @@ - (NSMutableAttributedString *)buildCTAttributeString
         [attributedString addAttribute:NSForegroundColorAttributeName value:_color range:NSMakeRange(0, string.length)];
     }
     
-    if (_fontFamily) {
-        // notification received when custom icon font file download finish
-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(repaintText:) name:WX_ICONFONT_DOWNLOAD_NOTIFICATION object:nil];
-    }
-    
     // set font
     UIFont *font = [WXUtility fontWithSize:_fontSize textWeight:_fontWeight textStyle:_fontStyle fontFamily:_fontFamily scaleFactor:self.weexInstance.pixelScaleFactor useCoreText:[self useCoreText]];
     CTFontRef ctFont = CTFontCreateWithName((__bridge CFStringRef)font.fontName,
@@ -505,11 +508,6 @@ - (NSAttributedString *)buildAttributeString
         [attributedString addAttribute:NSForegroundColorAttributeName value:_color range:NSMakeRange(0, string.length)];
     }
     
-    if (_fontFamily) {
-        // notification received when custom icon font file download finish
-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(repaintText:) name:WX_ICONFONT_DOWNLOAD_NOTIFICATION object:nil];
-    }
-    
     // set font
     UIFont *font = [WXUtility fontWithSize:_fontSize textWeight:_fontWeight textStyle:_fontStyle fontFamily:_fontFamily scaleFactor:self.weexInstance.pixelScaleFactor];
     if (font) {
diff --git a/ios/sdk/WeexSDK/Sources/Manager/WXRuleManager.m b/ios/sdk/WeexSDK/Sources/Manager/WXRuleManager.m
index dc1220742b..5125194152 100644
--- a/ios/sdk/WeexSDK/Sources/Manager/WXRuleManager.m
+++ b/ios/sdk/WeexSDK/Sources/Manager/WXRuleManager.m
@@ -84,7 +84,7 @@ - (void)addRule:(NSString*)type rule:(NSDictionary *)rule
             
             fontSrc = newURL;
             NSMutableDictionary * fontFamily = [self.fontStorage objectForKey:rule[@"fontFamily"]];
-            if (fontFamily && [fontFamily[@"src"] isEqualToString:fontSrc]) {
+            if (fontFamily && [fontFamily[@"tempSrc"] isEqualToString:fontSrc]) {
                 // if the new src is same as src in dictionary , ignore it, or update it
                 return;
             }