The all-terrain quadruped robot system includes large-size (B1), medium-size (AlienGo) and small-size (Go1Edu) quadruped robots. Large, medium and small quadruped robots have vision sensors to sense the environment. Large and medium-sized quadruped robots need a certain load capacity and obstacle-surmounting ability, while small quadruped robots move fast and agile. The system can be used as the school's mobile robotic platform to support teaching and research work on bionic robots, motion control algorithms, machine learning, and other related content.