A vehicle power output control method, apparatus and system are provided. The method includes: collecting an image of a road surface on which a vehicle drives currently, and recognizing, according to the image of the road surface, the type of the road surface on which the vehicle drives currently; starting, according to the current type of the road surface, a terrain mode corresponding to an all-terrain adaptive mode; determining, in the terrain mode, a power output strategy corresponding to the current terrain mode; and adjusting an output torque of an engine according to a power output curve corresponding to the current power output strategy, the power output curve being a function curve using a stepping depth of an accelerator pedal as a variable and the output torque of the engine as an output. The method facilitates outputting an adaptive power by an engine when a vehicle drives on different road surfaces.