The invention discloses a nitrogen-doped graphene/nickel ferrite/polyaniline nanometer composite material and a preparation method for the same. The preparation method comprises the following steps of ultrasonically dispersing graphite oxide in de-ionized water, and adding nickel nitrate and iron nitrate into the solution for stirring and dissolving; adding urea into the mixed solution for stirring and dissolving, performing reaction for a certain time under an oil bath condition, centrifugally washing a product to obtain a nitrogen-doped graphene/nickel ferrite nanometer composite material, and in-situ polymerizing polyaniline on the surface of the binary composite material serving as a matrix under an ice bath condition to obtain the nitrogen-doped graphene/nickel ferrite/polyaniline nanometer composite material. According to the nitrogen-doped graphene/nickel ferrite/polyaniline nanometer composite material and the preparation method for the same, graphene, nickel ferrite and polyaniline are compounded, so that the electrochemical performance (the specific capacitance reaches 1,290F/g, and is attenuated by about 7 percent after 5,000 cycles) of the composite material is greatly improved; when the energy density is 134.9WhKg<-1>, the corresponding power density reaches 6,337.5WKg<-1>, so that the composite material can be applied to energy storage devices with high power requirements.