Electric pencil sharpener

The utility model relates to the technical field of office stationery. The utility model relates to a sharpener, in particular to an electric sharpener. The device comprises a surface shell, a garbagecover, a bottom cover, a knife rest mechanism, a driving mechanism and a power assembly, wherein the surface shell, the bottom cover and the garbage cover are detachably connected with one another; the lower end of the knife rest mechanism is connected with the driving mechanism; the upper end is connected with a movable guider; the movable guider is connected with the surface shell through a spring; when the knife rest mechanism needs to be replaced; when the pencil sharpener is used, the garbage cover is pulled out, the knife rest mechanism is held by a hand, the movable guider is slightlypushed upwards, the knife rest mechanism can be easily taken out, the knife rest mechanism is replaced, and in addition, a dual-control circuit switch is arranged, so that when a user disassembles theknife rest mechanism or cl