The invention discloses a power downshift control method in the sliding downshift process. The power downshift control method in the sliding downshift process comprises the steps that in the sliding downshift process, if a driver steps on an accelerator, the gear shifting state of a vehicle is comprehensively judged, and a clutch control strategy in the gear shifting process is adjusted in real time. The method has the advantages that the problem of gear shifting impact caused by overshooting of the rotating speed of an engine under the working condition that the driver steps on the accelerator in the sliding downshift process can be effectively solved, stable speed regulation of the engine can be ensured, the gear shifting process can be smooth, and the driving and riding feelings of the whole vehicle can be improved.