Fuel pump filter high in sealing performance and convenient to disassemble and assemble

A fuel pump filter high in sealing performance and convenient to disassemble and assemble comprises a filter head element and a filter element element, the filter head element is provided with a filter head shell, a feeding port formed in the filter head shell, a first positioning protruding block connected to the filter head shell and a plurality of first positioning grooves formed in the side face of the filter head shell, the filter element comprises a connecting framework, a filter screen connected to the connecting framework and a plurality of second positioning convex blocks connected to the connecting framework, a second positioning groove is formed in the connecting framework, a rubber gasket is arranged on the second positioning groove, the shape of the first positioning convex blocks is matched with the shape and size of the rubber gasket, and the first positioning convex blocks are matched with the rubber gasket in shape and size. The second positioning groove is matched with the cross section of t