The invention provides an underwater escape robot. The underwater escape robot comprises a main body module, two mechanical arm modules, eight connecting rods, two driving modules and a base module. The underwater escape robot is characterized in that the lower portion of a rack of the main body module is mounted on a rack mounting base of the base module; two sliding pins on the base module are matched with two locating holes in the lower half portion of the rack; and the two mechanical arm modules are mounted on two mechanical arm fixing seats mounted on the main body module through main supports at the ends of the two mechanical arm modules correspondingly. The underwater escape robot is arranged on the ground inside a cabin; the robot is navigated through a locating module, and a precise escape route can be provided for trapped persons; by means of the mechanical arm modules, obstacles in front of the robot can be removed; the robot is driven by the driving modules at the two sides, and oxygen can be provided for the four persons at the same time; and the self-rescue capability of the trapped persons is greatly improved, and losses caused by an accident are reduced.