The invention discloses a rotor integral load-bearing drive motor for a vehicle. A rotor of a motor is arranged as a hollow structure and is used for mounting part or all of a transmission, so that the structures of the motor and the transmission are deeply optimized to form part or all of a containment and height integration; the fit is smooth and natural, and the operation interference is avoided; the high efficiency operation of the motor under a full working condition and a comprehensive road condition is guaranteed. At the same time, an additional bending moment generated by a torque is transmitted to a case by a structure in which a rotor load is integrally supported by a transmission case and a main shaft, so that a large torque can be transmitted without bending deformation, and the size of a component under the same load-bearing capacity condition can be greatly reduced, and the hollow structure of the motor rotor is adapted; the large torque, the high speed and the light weight index are achieved, and also makes the transmission have better stability and low noise in a high speed state.