The invention discloses a multifunctional tool kit which comprises a guide rail groove, a cloth liner, a movable partition plate, a locking screw, a first fixing pin, a first fixing block, a second fixing pin, a second pin shaft, a first pin shaft, a connection shaft, a first box body, a second connection rod, a first connection rod, a second box body, a third box body, a handle, a placing plate, a lock, a locking device, a locking block, a clamping device, an upper cover, a third fixing block, a second fixing block, a lock hole and universal wheels. According to the multifunctional tool box, the structure is reasonable and simple, the production cost is low, installation is convenient, the movable partition plate can divide the lower side inside a kit body as needed, and therefore the requirement for placement of different sizes of tools is met; the first box body, the second box body and the third box body which are transversely arranged can be conveniently converted to be vertically arranged through the first connection rod and the second connection rod, the box bodies which are vertically arranged can be effectively fixed through the clamping device, and therefore all the tools in the tool kit can be conveniently used.