The core of augmented reality(AR)game applications is to virtualize real scenes into the game world,achieve geographical mapping of the environment in the virtual world,and bring players a good sense of immersion and interactivity.In order to improve the gaming experience,this article designs an AR sprite game based on mobile positioning.The game uses GPS coordinate values as the display coordinates of the game character on the map,uses GoogleMap as the map mapping,and uses Haversine formula to calculate the real-time distance between the character and the sprite,achieving the process of grabbing and capturing sprites.The game is developed using Unity3D as the development platform,MonoDevelop as the game editor,and C#language to write game scripts,achieving the capture process of virtual AR sprites in real scenes.