The invention relates to an expansion bolt convenient to disassemble. The expansion bolt comprises a bolt body, a sleeve pipe and a nut, wherein the sleeve pipe comprises a sleeve section and an expansion section; an extending section extending outwards in the busbar direction of the sleeve pipe is arranged at the outer end of the sleeve pipe; during installation, the expansion bolt is inserted into an installation hole to the required depth, the extending section of the sleeve pipe is bent outwards for 90 degrees by hands or with the help of a tool, so that a second bending section is clung to an installation wall body or the ground, and the depth and rotation of the sleeve pipe are controlled and limited when the nut is tightened subsequently; during disassembly, the nut is unscrewed, the bolt body is knocked, the second bending section is bent upwards or pried up, and the sleeve pipe is pulled out of the installation hole by clamping the tail end of the extending section at the clamping point quite conveniently and firmly through a pair of pincer pliers or sharp-nose pliers; and meanwhile, the conventional expansion bolt production process is not changed, production processes are not increased, all needed is to change the cutting size or the stamping die of the sleeve pipe during the conventional production process, and the cost is not additionally added compared with that of the conventional product.