Aiming at the problems of limited handling space and poor adaptive ability in the current research on AGV， this paper proposes a design scheme of a submersible trackless intelligent AGV， and completes the research on its positioning performance. The submersible trackless intelligent AGV designed in this paper has the advantages of low handling height， trackless automatic control， autonomous obstacle avoidance， etc. It can be widely used in unmanned assembly and handling of weapons or equipment， and will improve the intelligent level of equipment support.