The utility model provides an assembly and disassembly tools of plunger pump filler room, assembly and disassembly tools includes: fixed part, fixed part include first mounting hole, the body of rod, the body of rod is movably to be worn to establish in first mounting hole, biography power portion passes the power detachably of portion and sets up the first end at the body of rod, and biography power portion has the filler pressure cap complex biography power face with plunger pump filler room, the fastener sets up on the body of rod, passes power portion and fixes on the body of rod through the fastener. The technical scheme of the utility model the problem that the plunger pump filler room among the prior art is difficult to the dismouting has been solved.