Taking the audio and video system as an example,a learning card game based on the audio and video system is designed and produced in this paper.The game uses the Unity 3D game engine as the development tool and C sharp as the development language.The game uses UGUI to draw the main menu and related interfaces,uses different Button buttons to switch between different interfaces and different scenes,and edits different animations and sound effects to create a happy and easy game environment for players.Learning knowledge through card games can effectively improve people's learning efficiency,and enhance people's enthusiasm and initiative.