Abstract: The present invention relates to the technical field of climbing robots, and more specifically, to a high-mobility wheeled climbing robot, including a base, magnetic wheel modules, a tail wheel module, internal corner transition assistance mechanisms, and auxiliary moving wheels. When the tail wheel module is unfolded, the robot can be stably supported when creeping on a flat surface and crossing a structure such as an external corner or an edge of a thin plate and so on, and during storage, the tail wheel module is completely placed in the base without contacting with an environment; the internal corner transition assistance mechanisms allow the robot to cross an internal corner structure; and the auxiliary moving wheels can be used as a support wheel system for robot motion together with the tail wheel module, such that the robot can move on flat surfaces with any angles without rolling of the base.