The utility model discloses a high-voltage insulating grappler with insulation and warning functions. The high-voltage insulating grappler comprises a grappler body, wherein the outer wall of the grappler body is wrapped with three layers of outer claddings; the bottom layer of outer cladding is an insulating layer which is directly arranged on the outer wall of the grappler body, the middle layer of outer cladding is a colored warning oil paint layer, and the outer layer of outer cladding is an antiskid insulating protective belt; the grappler body comprises a pedal bracket and an adjustable movable bracket; the movable bracket is joined and fixed with the pedal bracket through locking teeth and tooth grooves. According to the high-voltage insulating grappler, the live working ratio is increased, and the safety risk of power supply overhauling personnel is reduced.