The invention relates to the technical field of assembling tools and discloses an electric tool. The electric tool comprises a cutting head assembly, a driving mechanism used for providing the cuttinghead assembly with power and a flexible transmission mechanism, wherein one end of the flexible transmission mechanism is connected with the driving mechanism, the other end of the flexible transmission mechanism is connected with the cutting head assembly, the flexible transmission mechanism is configured into one which is rigid and can be twisted and bent, and the driving mechanism transfers power into the cutting head assembly through the flexible transmission mechanism. In the electric tool, by arranging the flexible transmission mechanism between the cutting head assembly and the drivingmechanism, the working end of the electric tool is prolonged by utilizing the small size and great bendability characteristics of the flexible mechanism, the electric tool can be well used in equipment, pipelines or other small space, and the use range of the electric tool is increased.