I have working on Ionic 2 project and want to set a .GIF image as splash screen . If it is possible then please guide me how to set the same .
No. Splash screens are converted to platform specific resources, which is displayed while all the Ionic runtime is initializing. Both Android and iOS only supports static images for this.
You may be able to display something cool while performing asynchronous network requests. This has to be after the app is initialized, of course.