The invention discloses a hand-held electric wire stripping machine. The hand-held electric wire stripping machine comprises a main body shell and a back end cover, wherein the main body shell adopts a hollow cylindrical object; a number one lithium battery, a number two lithium battery, a motor, a motor terminal pad, a hollow tightening nut and a cutting sheet are arranged tightly attached to the back end cover in the main body shell in sequence; a protective cover is arranged between the upper surface of the front end of the main body shell and a protective cover fixing threaded rod; a transverse vertical limiter is fixedly arranged on the lower surface of the front end of the main body shell; the cutting sheet is fixedly arranged on the machine head of the motor through a cutting sheet gland nut; a charging socket and a power supply switch are arranged on the back end cover; and the back end cover and the hollow tightening nut are connected with the main body shell separately in a screw thread assembling manner. The hand-held electric wire stripping machine has the advantages that the hand-held electric wire stripping machine can strip insulating layers safely and rapidly without causing damage to cable cores and hands of a user; the cutting depth can be adjusted according to the specifications of the insulating wires; and therefore, the flat-cutting and rotary type direct-cutting ways, which cause damage to the cable cores, existing in the conventional electrician knife is changed.