The invention discloses an electric unmanned helicopter, and aims to provide the electric unmanned helicopter having advantages of simple structure, easy disassembly and assembly, good interchangeability, high integration, good functionality, light weight, strong load capacity, long endurance, good stability, small vibration, adjustable gravity center and the like. The electric unmanned helicopterprovided by the invention comprises a front end module, a middle end module and a rear end module which are sequentially connected, wherein the front end module comprises a left carbon fiber board and a right carbon fiber board which are symmetrically arranged; an image and data transmission device, an electronic speed regulating device and a load mounting board are arranged between the left carbon fiber board and the right carbon fiber board; the middle end module comprises an upper carbon fiber board, a lower carbon fiber board arranged below the upper carbon fiber board, and main power systems arranged on the upper carbon fiber board and the lower carbon fiber board; the rear end module comprises a tail tube and a tail rotor system arranged at a tail end of the tail tube. The electricunmanned helicopter provided by the invention is applied to the technical field of electric unmanned helicopters.