diff --git a/doric-iOS/Devkit/Classes/DoricDebugDriver.m b/doric-iOS/Devkit/Classes/DoricDebugDriver.m
index 82f4ae49..11a8e661 100644
--- a/doric-iOS/Devkit/Classes/DoricDebugDriver.m
+++ b/doric-iOS/Devkit/Classes/DoricDebugDriver.m
@@ -55,7 +55,7 @@ - (DoricRegistry *)registry {
 - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArray *)args {
     DoricAsyncResult *ret = [[DoricAsyncResult alloc] init];
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -64,7 +64,7 @@ - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArr
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
@@ -76,7 +76,7 @@ - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArr
         [array addObject:arg];
     }
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -85,7 +85,7 @@ - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArr
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
@@ -108,7 +108,7 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
         arg = va_arg(args, JSValue *);
     }
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -117,7 +117,7 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
@@ -130,7 +130,7 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
         [array addObject:arg];
     }
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -139,14 +139,14 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
 - (DoricAsyncResult *)createContext:(NSString *)contextId script:(NSString *)script source:(NSString *)source {
     DoricAsyncResult *ret = [[DoricAsyncResult alloc] init];
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -155,14 +155,14 @@ - (DoricAsyncResult *)createContext:(NSString *)contextId script:(NSString *)scr
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
 - (DoricAsyncResult *)destroyContext:(NSString *)contextId {
     DoricAsyncResult *ret = [[DoricAsyncResult alloc] init];
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -171,7 +171,7 @@ - (DoricAsyncResult *)destroyContext:(NSString *)contextId {
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
diff --git a/doric-iOS/Pod/Classes/DoricNativeDriver.m b/doric-iOS/Pod/Classes/DoricNativeDriver.m
index 1ddef1a1..b0f96025 100644
--- a/doric-iOS/Pod/Classes/DoricNativeDriver.m
+++ b/doric-iOS/Pod/Classes/DoricNativeDriver.m
@@ -56,7 +56,7 @@ + (instancetype)instance {
 - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArray *)args {
     DoricAsyncResult *ret = [[DoricAsyncResult alloc] init];
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -65,7 +65,7 @@ - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArr
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
@@ -85,7 +85,7 @@ - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArr
         [array addObject:arg];
     }
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -94,7 +94,7 @@ - (DoricAsyncResult *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArr
         } @catch (NSException *exception) {
             [ret setupError:exception];
         }
-    });
+    }];
     return ret;
 }
 
@@ -117,7 +117,7 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
         arg = va_arg(args, JSValue *);
     }
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -127,7 +127,7 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
             [ret setupError:exception];
             [self.jsExecutor.registry onException:exception inContext:[[DoricContextManager instance] getContext:contextId]];
         }
-    });
+    }];
     return ret;
 }
 
@@ -140,7 +140,7 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
         [array addObject:arg];
     }
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -150,14 +150,14 @@ - (DoricAsyncResult *)invokeContextEntity:(NSString *)contextId method:(NSString
             [ret setupError:exception];
             [self.jsExecutor.registry onException:exception inContext:[[DoricContextManager instance] getContext:contextId]];
         }
-    });
+    }];
     return ret;
 }
 
 - (DoricAsyncResult *)createContext:(NSString *)contextId script:(NSString *)script source:(NSString *)source {
     DoricAsyncResult *ret = [[DoricAsyncResult alloc] init];
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -167,14 +167,14 @@ - (DoricAsyncResult *)createContext:(NSString *)contextId script:(NSString *)scr
             [ret setupError:exception];
             [self.registry onException:exception inContext:[[DoricContextManager instance] getContext:contextId]];
         }
-    });
+    }];
     return ret;
 }
 
 - (DoricAsyncResult *)destroyContext:(NSString *)contextId {
     DoricAsyncResult *ret = [[DoricAsyncResult alloc] init];
     __weak typeof(self) _self = self;
-    dispatch_async(self.jsExecutor.jsQueue, ^() {
+    [self.jsExecutor ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         if (!self) return;
         @try {
@@ -184,7 +184,7 @@ - (DoricAsyncResult *)destroyContext:(NSString *)contextId {
             [ret setupError:exception];
             [self.jsExecutor.registry onException:exception inContext:[[DoricContextManager instance] getContext:contextId]];
         }
-    });
+    }];
     return ret;
 }
 
diff --git a/doric-iOS/Pod/Classes/Engine/DoricJSEngine.h b/doric-iOS/Pod/Classes/Engine/DoricJSEngine.h
index 646366ad..32bd1de3 100644
--- a/doric-iOS/Pod/Classes/Engine/DoricJSEngine.h
+++ b/doric-iOS/Pod/Classes/Engine/DoricJSEngine.h
@@ -32,7 +32,6 @@ NS_ASSUME_NONNULL_BEGIN
 
 @property(nonatomic, strong) id <DoricJSExecutorProtocol> jsExecutor;
 
-@property(nonatomic, strong) dispatch_queue_t jsQueue;
 
 @property(nonatomic, strong) DoricRegistry *registry;
 
@@ -45,6 +44,8 @@ NS_ASSUME_NONNULL_BEGIN
 - (JSValue *)invokeDoricMethod:(NSString *)method arguments:(va_list)args;
 
 - (JSValue *)invokeDoricMethod:(NSString *)method argumentsArray:(NSArray *)args;
+
+- (void)ensureRunOnJSThread:(dispatch_block_t)block;
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m b/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m
index ec692a6c..e28a5ed0 100644
--- a/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m
+++ b/doric-iOS/Pod/Classes/Engine/DoricJSEngine.m
@@ -45,13 +45,16 @@ @interface DoricJSEngine ()
 @property(nonatomic, strong) NSMutableDictionary *timers;
 @property(nonatomic, strong) DoricBridgeExtension *bridgeExtension;
 @property(nonatomic, strong) NSDictionary *innerEnvironmentDictionary;
+@property(nonatomic, strong) NSThread *jsThread;
+@property(nonatomic, assign) BOOL destroyed;
 @end
 
 @implementation DoricJSEngine
 
 - (instancetype)init {
     if (self = [super init]) {
-        _jsQueue = dispatch_queue_create("doric.jsengine", DISPATCH_QUEUE_SERIAL);
+        _jsThread = [[NSThread alloc] initWithTarget:self selector:@selector(threadRun) object:nil];
+        [_jsThread start];
         NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
         struct utsname systemInfo;
         uname(&systemInfo);
@@ -72,7 +75,7 @@ - (instancetype)init {
                 @"deviceBrand": @"Apple",
                 @"deviceModel": platform,
         };
-        dispatch_async(_jsQueue, ^() {
+        [self ensureRunOnJSThread:^() {
             self.timers = [[NSMutableDictionary alloc] init];
             self.registry = [[DoricRegistry alloc] init];
             self.bridgeExtension = [DoricBridgeExtension new];
@@ -80,11 +83,36 @@ - (instancetype)init {
             [self initJSEngine];
             [self initJSExecutor];
             [self initDoricEnvironment];
-        });
+        }];
     }
     return self;
 }
 
+- (void)dealloc {
+    _destroyed = YES;
+};
+
+- (void)ensureRunOnJSThread:(dispatch_block_t)block {
+    if (NSThread.currentThread == _jsThread) {
+        block();
+    } else {
+        [self performSelector:@selector(ensureRunOnJSThread:)
+                     onThread:_jsThread
+                   withObject:[block copy]
+                waitUntilDone:NO];
+    }
+}
+
+- (void)threadRun {
+    [[NSRunLoop currentRunLoop] addPort:[NSMachPort port] forMode:NSDefaultRunLoopMode];
+    [NSThread currentThread].name = @"doric.js.engine";
+    while (!_destroyed) {
+        @autoreleasepool {
+            [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
+        }
+    }
+}
+
 - (void)initJSEngine {
     [self.registry registerMonitor:[DoricDefaultMonitor new]];
     self.jsExecutor = [DoricJSCoreExecutor new];
@@ -234,7 +262,7 @@ - (void)callbackTimer:(NSTimer *)timer {
     NSDictionary *userInfo = timer.userInfo;
     NSNumber *timerId = [userInfo valueForKey:@"timerId"];
     NSNumber *repeat = [userInfo valueForKey:@"repeat"];
-    dispatch_async(self.jsQueue, ^() {
+    [self ensureRunOnJSThread:^{
         __strong typeof(_self) self = _self;
         @try {
             [self invokeDoricMethod:DORIC_TIMER_CALLBACK, timerId, nil];
@@ -246,6 +274,6 @@ - (void)callbackTimer:(NSTimer *)timer {
         if (![repeat boolValue]) {
             [self.timers removeObjectForKey:[timerId stringValue]];
         }
-    });
+    }];
 }
 @end