The invention discloses a novel durable magnetization anchor rod which comprises an anchor rod body, a conical end sleeve, a conical block nut, a claw-shaped elastic anti-expansion outer bushing, a concave spring ring, an elastic magnetization slotting steel pipe, a rubber bushing, an arch tray, an antifriction gasket, an opposite-abutting thickening nut fastening mechanism. The novel durable magnetization anchor rod is characterized in that the conical end sleeve guides the anchor rod body to be drilled into a drill hole, the conical block nut and the deep hole wall of the drill hole form a self-locking structure, the anchor rod body can be pushed axially, the claw-shaped elastic anti-expansion outer bushing is moved to the end of the anchor rod body, the elastic magnetization slotting steel pipe is released, claw teeth are retracted, the concave spring is compressed axially, the elastic magnetization slotting steel pipe is expanded, a wedge block is fitted, the outer wall of the steel pipe and the wall of the drill hole are extruded tightly, and the opposite-abutting thickening nut fastening mechanism compresses the arch tray to exert pretightening force on the anchor rod. On one hand, the anchor rod can stabilize a rock layer by enabling surrounding rock to be in the three-way stress state; on the other hand, the effective action time of the pretightening force of the anchor rod on the surrounding rock can be prolonged, the durability of the anchor rod can be improved, and the supporting efficiency can be improved.