The invention relates to an electric wheel dump truck with the loading capacity of 136t. The electric wheel dump truck comprises a power system, an engine compartment, a frame assembly, a front sheet metal assembly, a travelling system, electric wheels, a carriage assembly, a brake resistance grid, an electric control cabinet and a cab assembly. The carriage assembly is of an all-metal welding structure with the cross section being deep V-shaped, and is provided with a horizontal bearing beam; the frame assembly comprises a variable cross-section box-type longitudinal beam, an integral gantry beam and a round-cross-section tail cross beam, and the bottom of the carriage assembly is hinged to a bearing at the tail of the longitudinal beam of the frame assembly; the power system comprises a diesel engine and a synchronous generator, the engine compartment comprises lateral compartment plates and a front compartment plate, the lateral compartment plates are arranged on two sides of the diesel engine, and the front compartment plate is arranged in front of the front diesel engine. The electric wheel dump truck is compact in structure, reasonable in arrangement, low in running cost, good in maintainability, simpler in operation, good in comfortability, higher in environmental adaptability and the like, and is adaptable to extreme environment conditions.