diff --git a/shell/platform/darwin/macos/framework/Source/FlutterTextInputPlugin.mm b/shell/platform/darwin/macos/framework/Source/FlutterTextInputPlugin.mm
index ebf5057d6e7ae..78a65b73e1cbf 100644
--- a/shell/platform/darwin/macos/framework/Source/FlutterTextInputPlugin.mm
+++ b/shell/platform/darwin/macos/framework/Source/FlutterTextInputPlugin.mm
@@ -61,6 +61,9 @@
 static NSString* const kTextAffinityDownstream = @"TextAffinity.downstream";
 static NSString* const kTextAffinityUpstream = @"TextAffinity.upstream";
 
+// TextInputAction types
+static NSString* const kInputActionNewline = @"TextInputAction.newline";
+
 #pragma mark - Enums
 /**
  * The affinity of the current cursor position. If the cursor is at a position representing
@@ -820,7 +823,8 @@ - (void)insertNewline:(id)sender {
     _activeModel->CommitComposing();
     _activeModel->EndComposing();
   }
-  if ([self.inputType isEqualToString:kMultilineInputType]) {
+  if ([self.inputType isEqualToString:kMultilineInputType] &&
+      [self.inputAction isEqualToString:kInputActionNewline]) {
     [self insertText:@"\n" replacementRange:self.selectedRange];
   }
   [_channel invokeMethod:kPerformAction arguments:@[ self.clientID, self.inputAction ]];
diff --git a/shell/platform/darwin/macos/framework/Source/FlutterTextInputPluginTest.mm b/shell/platform/darwin/macos/framework/Source/FlutterTextInputPluginTest.mm
index d91e88e4051fb..d5d31b5115fec 100644
--- a/shell/platform/darwin/macos/framework/Source/FlutterTextInputPluginTest.mm
+++ b/shell/platform/darwin/macos/framework/Source/FlutterTextInputPluginTest.mm
@@ -1470,6 +1470,196 @@ - (bool)unhandledKeyEquivalent {
   return true;
 }
 
+- (bool)testInsertNewLine {
+  id engineMock = flutter::testing::CreateMockFlutterEngine(@"");
+  id binaryMessengerMock = OCMProtocolMock(@protocol(FlutterBinaryMessenger));
+  OCMStub(  // NOLINT(google-objc-avoid-throwing-exception)
+      [engineMock binaryMessenger])
+      .andReturn(binaryMessengerMock);
+  OCMStub([[engineMock ignoringNonObjectArgs] sendKeyEvent:FlutterKeyEvent {}
+                                                  callback:nil
+                                                  userData:nil]);
+
+  FlutterViewController* viewController = [[FlutterViewController alloc] initWithEngine:engineMock
+                                                                                nibName:@""
+                                                                                 bundle:nil];
+
+  FlutterTextInputPlugin* plugin =
+      [[FlutterTextInputPlugin alloc] initWithViewController:viewController];
+
+  NSDictionary* setClientConfig = @{
+    @"inputType" : @{@"name" : @"TextInputType.multiline"},
+    @"inputAction" : @"TextInputAction.newline",
+  };
+  [plugin handleMethodCall:[FlutterMethodCall methodCallWithMethodName:@"TextInput.setClient"
+                                                             arguments:@[ @(1), setClientConfig ]]
+                    result:^(id){
+                    }];
+
+  FlutterMethodCall* call = [FlutterMethodCall methodCallWithMethodName:@"TextInput.setEditingState"
+                                                              arguments:@{
+                                                                @"text" : @"Text",
+                                                                @"selectionBase" : @(4),
+                                                                @"selectionExtent" : @(4),
+                                                                @"composingBase" : @(-1),
+                                                                @"composingExtent" : @(-1),
+                                                              }];
+
+  NSDictionary* expectedState = @{
+    @"selectionBase" : @(4),
+    @"selectionExtent" : @(4),
+    @"selectionAffinity" : @"TextAffinity.upstream",
+    @"selectionIsDirectional" : @(NO),
+    @"composingBase" : @(-1),
+    @"composingExtent" : @(-1),
+    @"text" : @"Text",
+  };
+
+  NSData* updateCall = [[FlutterJSONMethodCodec sharedInstance]
+      encodeMethodCall:[FlutterMethodCall
+                           methodCallWithMethodName:@"TextInputClient.updateEditingState"
+                                          arguments:@[ @(1), expectedState ]]];
+
+  OCMExpect(  // NOLINT(google-objc-avoid-throwing-exception)
+      [binaryMessengerMock sendOnChannel:@"flutter/textinput" message:updateCall]);
+
+  [plugin handleMethodCall:call
+                    result:^(id){
+                    }];
+
+  @try {
+    OCMVerify(  // NOLINT(google-objc-avoid-throwing-exception)
+        [binaryMessengerMock sendOnChannel:@"flutter/textinput" message:updateCall]);
+  } @catch (...) {
+    return false;
+  }
+
+  [plugin doCommandBySelector:@selector(insertNewline:)];
+
+  NSDictionary* updatedState = @{
+    @"selectionBase" : @(5),
+    @"selectionExtent" : @(5),
+    @"selectionAffinity" : @"TextAffinity.upstream",
+    @"selectionIsDirectional" : @(NO),
+    @"composingBase" : @(-1),
+    @"composingExtent" : @(-1),
+    @"text" : @"Text\n",
+  };
+
+  updateCall = [[FlutterJSONMethodCodec sharedInstance]
+      encodeMethodCall:[FlutterMethodCall
+                           methodCallWithMethodName:@"TextInputClient.updateEditingState"
+                                          arguments:@[ @(1), updatedState ]]];
+
+  @try {
+    OCMVerify(  // NOLINT(google-objc-avoid-throwing-exception)
+        [binaryMessengerMock sendOnChannel:@"flutter/textinput" message:updateCall]);
+  } @catch (...) {
+    return false;
+  }
+
+  return true;
+}
+
+- (bool)testSendActionDoNotInsertNewLine {
+  id engineMock = flutter::testing::CreateMockFlutterEngine(@"");
+  id binaryMessengerMock = OCMProtocolMock(@protocol(FlutterBinaryMessenger));
+  OCMStub(  // NOLINT(google-objc-avoid-throwing-exception)
+      [engineMock binaryMessenger])
+      .andReturn(binaryMessengerMock);
+  OCMStub([[engineMock ignoringNonObjectArgs] sendKeyEvent:FlutterKeyEvent {}
+                                                  callback:nil
+                                                  userData:nil]);
+
+  FlutterViewController* viewController = [[FlutterViewController alloc] initWithEngine:engineMock
+                                                                                nibName:@""
+                                                                                 bundle:nil];
+
+  FlutterTextInputPlugin* plugin =
+      [[FlutterTextInputPlugin alloc] initWithViewController:viewController];
+
+  NSDictionary* setClientConfig = @{
+    @"inputType" : @{@"name" : @"TextInputType.multiline"},
+    @"inputAction" : @"TextInputAction.send",
+  };
+  [plugin handleMethodCall:[FlutterMethodCall methodCallWithMethodName:@"TextInput.setClient"
+                                                             arguments:@[ @(1), setClientConfig ]]
+                    result:^(id){
+                    }];
+
+  FlutterMethodCall* call = [FlutterMethodCall methodCallWithMethodName:@"TextInput.setEditingState"
+                                                              arguments:@{
+                                                                @"text" : @"Text",
+                                                                @"selectionBase" : @(4),
+                                                                @"selectionExtent" : @(4),
+                                                                @"composingBase" : @(-1),
+                                                                @"composingExtent" : @(-1),
+                                                              }];
+
+  NSDictionary* expectedState = @{
+    @"selectionBase" : @(4),
+    @"selectionExtent" : @(4),
+    @"selectionAffinity" : @"TextAffinity.upstream",
+    @"selectionIsDirectional" : @(NO),
+    @"composingBase" : @(-1),
+    @"composingExtent" : @(-1),
+    @"text" : @"Text",
+  };
+
+  NSData* updateCall = [[FlutterJSONMethodCodec sharedInstance]
+      encodeMethodCall:[FlutterMethodCall
+                           methodCallWithMethodName:@"TextInputClient.updateEditingState"
+                                          arguments:@[ @(1), expectedState ]]];
+
+  OCMExpect(  // NOLINT(google-objc-avoid-throwing-exception)
+      [binaryMessengerMock sendOnChannel:@"flutter/textinput" message:updateCall]);
+
+  [plugin handleMethodCall:call
+                    result:^(id){
+                    }];
+
+  [plugin doCommandBySelector:@selector(insertNewline:)];
+
+  NSData* performActionCall = [[FlutterJSONMethodCodec sharedInstance]
+      encodeMethodCall:[FlutterMethodCall
+                           methodCallWithMethodName:@"TextInputClient.performAction"
+                                          arguments:@[ @(1), @"TextInputAction.send" ]]];
+
+  // Input action should be notified.
+  @try {
+    OCMVerify(  // NOLINT(google-objc-avoid-throwing-exception)
+        [binaryMessengerMock sendOnChannel:@"flutter/textinput" message:performActionCall]);
+  } @catch (...) {
+    return false;
+  }
+
+  NSDictionary* updatedState = @{
+    @"selectionBase" : @(5),
+    @"selectionExtent" : @(5),
+    @"selectionAffinity" : @"TextAffinity.upstream",
+    @"selectionIsDirectional" : @(NO),
+    @"composingBase" : @(-1),
+    @"composingExtent" : @(-1),
+    @"text" : @"Text\n",
+  };
+
+  updateCall = [[FlutterJSONMethodCodec sharedInstance]
+      encodeMethodCall:[FlutterMethodCall
+                           methodCallWithMethodName:@"TextInputClient.updateEditingState"
+                                          arguments:@[ @(1), updatedState ]]];
+
+  // Verify that editing state was not be updated.
+  @try {
+    OCMVerify(  // NOLINT(google-objc-avoid-throwing-exception)
+        [binaryMessengerMock sendOnChannel:@"flutter/textinput" message:updateCall]);
+    return false;
+  } @catch (...) {
+    // Expected.
+  }
+
+  return true;
+}
+
 - (bool)testLocalTextAndSelectionUpdateAfterDelta {
   id engineMock = flutter::testing::CreateMockFlutterEngine(@"");
   id binaryMessengerMock = OCMProtocolMock(@protocol(FlutterBinaryMessenger));
@@ -1694,6 +1884,14 @@ - (bool)testSelectorsAreForwardedToFramework {
   ASSERT_TRUE([[FlutterInputPluginTestObjc alloc] testSelectorsAreForwardedToFramework]);
 }
 
+TEST(FlutterTextInputPluginTest, TestInsertNewLine) {
+  ASSERT_TRUE([[FlutterInputPluginTestObjc alloc] testInsertNewLine]);
+}
+
+TEST(FlutterTextInputPluginTest, TestSendActionDoNotInsertNewLine) {
+  ASSERT_TRUE([[FlutterInputPluginTestObjc alloc] testSendActionDoNotInsertNewLine]);
+}
+
 TEST(FlutterTextInputPluginTest, CanWorkWithFlutterTextField) {
   FlutterEngine* engine = CreateTestEngine();
   FlutterViewController* viewController = [[FlutterViewController alloc] initWithEngine:engine