A plying tool includes a main body including a first joining portion and a second joining portion and a plying member set including a first and second plying member movably and releasably connected with the main body. The first and second plying members are movable relative to each other and adapted to connect with the main body in a first arrangement with the first plying member connected with the first joining portion and the second plying member connected with the second joining portion respectively, and a second arrangement with the first plying member connected with the second joining portion and the second plying member connected with the first joining portion respectively.