The invention discloses a control method and device for a hybrid power vehicle. The control method includes the steps of obtaining a current working state of the vehicle, and controlling a driving motor to provide increased or decreased torque which is required for switching to a target gear when the vehicle currently receives a coaxial downshift request or receives other operation requests of a driver in the gear shifting process. By means of the control method and device, the gear shifting time of the DCT vehicle can be shortened, and smoothness of the vehicle in the gear shifting process is improved.