The invention provides a method for preparing an amidogen graphene/polyvinylidene fluoride piezoelectric nano electrospun film, and belongs to the field of function materials. The amidogen graphene/polyvinylidene fluoride piezoelectric nano electrospun film is prepared through the electrospinning technique. Compared with a pure polyvinylidene fluoride piezoelectric nano electrospun film, due to the fact that polyvinylidene fluoride can be promoted to generate more polar beta-crystals through the interface induction function in the presence of amidogen graphene, the piezoelectric performance ofthe amidogen graphene/polyvinylidene fluoride piezoelectric nano electrospun film is effectively improved. The preparation method is simple in process and easy to operate, the obtained electrospun film has the advantages of being good in toughness, small in density, capable of being shorn into films different in size or complex in shape and the like, and is advantageously applied to the fields ofacoustics, electronic engineering, measurement, military science, traffic, information engineering, geological prospecting and the like as a sensor, a trigger, a driver and an energy acquirer.