The invention relates to a control method of a finished series hybrid power electric vehicle based on fuzzy logic, belonging to the technical field of control of hybrid power electric vehicles. A required working state of a drive motor is divided into seven areas according to an expert control principle, engineer experience, vehicle working area characteristics and the working characteristics of the drive motor; a working state of a power battery is divided into seven areas according to the characteristics of the power battery; an output state of an engine is divided into three to five fuel economy and low discharge points according to the working performance of the engine; the fuel economy and low discharge points of the engine are output by adopting a fuzzy logic algorithm and adopting the charge state of the power battery and the required powder of the drive motor as input variables according to the change of the input variables, and the engine, the power battery and the drive motor are operated in an efficient area. The invention can reduce the working participation time of the battery and an energy drive chain, improve the energy-saving effect of the finished vehicle, the economy and the discharge performance of the engine and prolong the service lives of the finished vehicle and all components.