The utility model relates to a novel insulation pin-replacing device and belongs to the technical field of power grid maintenance facilities. The device comprises two parts including a pin-replacing device head and an insulation operating lever, wherein the pin-replacing device head comprises a vertical arm, pin-assembling teeth, a pin-disassembling groove, a screw-fixing hole and a clamping groove, wherein the T-shaped pin-assembling teeth integrally made with the vertical arm consisting of an upper tooth and a lower tooth, the teeth length is 3.5-4cm, and the distance between the teeth and the tooth arm is 4.5-5cm; the pin-disassembling groove adopting a ladder-shaped groove is formed at the top end of the tooth arm, the width of the groove port is 1.4cm, the width of the groove bottom is 1.5cm, and the depth of the groove is 0.2cm; and the screw-fixing hole and the clamping groove are positioned at the lower end of the vertical arm. The insulation operating lever comprises an insulation level, a fixing groove, a fixing screw and a fixing pin, wherein the fixing groove is formed at the upper end of the insulation level; the fixing screw and the fixing pin are arranged in the fixing groove; the pin-replacing device head is fixed in the fixing groove on the insulation operating level via the fixing screw; and the clamping groove at the lower end of the vertical arm is meshed with the fixing pin in the fixing groove, so as to play a fixing role. The novel pin-replacing device has simple structure and low construction cost, can be used on a 220 kV split conductor circuit, and can reduce interrupted power supply to users.