The utility model discloses a touch pen with a telescopic pen point for protection, and relates to the technical field of touch pens. The pen comprises a pen holder, a pen point is arranged on the outer surface of the pen holder, a pen cover is fixedly connected to the outer surface of the pen holder, and a protection device is arranged on the outer surface of the pen holder. The protection device comprises a strip-shaped fixing block, the strip-shaped fixing block is fixedly connected to the outer surface of the pen holder, and a three-phase asynchronous motor is fixedly connected to the outer surface of the strip-shaped fixing block. According to the utility model, the rotating force of the reciprocating screw rod driven by the three-phase asynchronous motor is matched with the strip-shaped fixed block, the three-phase asynchronous motor, the reciprocating screw rod, the moving block, the sliding chute, the L-shaped limiting rod, the strip-shaped connecting rod, the protective shell and other components in the protective device, so that the protective effect of the protective shell and the strip-shaped connecting rod is realized; therefore, after the touch pen falls off, the protective shell can protect the pen holder and the pen point, and the protective effect is achieved.