The utility model discloses an arresting gear for locomotive, including being curved brake shoe, the coating has the wearing layer on the internal surface of brake shoe, and the coating has the frictional layer on the surface of brake shoe, has cup jointed the round pin along long on the head of two brake shoe borers to having set two brake shoe borers on the surface of brake shoe, and the outer wall that is close to to wear the one end department of round pin of wearing the round pin rises by the footpath and forms spacing circular bead, and radial the opening of round pin of wearing of beingclose to to wear round pin other end department has the bolt hole, has set the stay bolt on the bolt hole. The utility model discloses an arresting gear for locomotive can prevent that brake shoe, brake shoe borer from droing to the rail, and the emergence of avoid accident reduces the operating risk, guarantees the normal operating of locomotive, can increase the rub fastness of brake shoe, canalso avoid the brake shoe to grind partially, elongate replacement cycle, reduction in production cost.