The invention relates to an electric power take-up and pay-out device, in particular to a portable take-up and pay-out device utilizing the power of a motor vehicle. It includes a motor vehicle tire side shaft, a connector, a circular base, an inner take-up reel, an outer take-up reel, and a labor-saving handle connected by the main and auxiliary screws. The connector is provided with a wire hole, and the circular base is provided with a number of There are eyelets, the shape of the inner take-up reel and the outer take-up reel are the same, and the trapezoidal horn structure is adopted, and the labor-saving handle is provided with an extended handle. The invention can realize the one-time collection and replacement of long cables, relying on the power of motor vehicles to replace the traditional manpower collection and pay-off method, the structural innovation adopts the design of inner and outer pay-off reels to facilitate the installation and disassembly of cables, construction, Transportation efficiency is significantly improved. Different motor vehicles can be used without being restricted by terrain. The reusability of cables during construction, transportation and storage is greatly improved, and the economic benefits are significant. The neat storage management of cables is realized, and a lot of storage space is saved. Convenient, fast and safe.