This robot is equipped with a dry fog space sterilization system, which boasts a strong sterilizing capacity but extremely low corrosion. The system achieves sterilization using the dry fog of special sterilizing agents. Driven by strong air supply, the dry fog diffuses and evaporates in the space, thus eliminating microorganisms and viruses in the air. The robot can move autonomously, and accomplish timed, fixed-point and multi-track mobile disinfection and sterilization in a large space.