The utility model is suitable for the technical field of electrical equipment. The utility model provides a novel terminal short circuit tool. The device comprises a short-circuit assembly and a connecting assembly, the short circuit assembly comprises a folding metal sheet, a folding metal sheet and a connecting pipe; a plurality of groups of folding metal sheets are arranged; two adjacent groupsof folding metal sheets are rotationally connected; therefore, when the terminal is short-circuited, the terminal is short-circuited; a corresponding short joint can be selected; the short joint is fixedly connected with the inner cavity of the connecting pipe through a fixing nut and a fixing bolt; then, the distance between the two groups of short joints is adjusted to be the same as the distance between the positions to be accessed; then, the short joint is inserted into the corresponding access position; thus, short circuit is completed, and the problems that in the current operation process, common test wiring is short-circuited manually, the test wiring length is generally large, space blockage is easily caused when multi-terminal short circuit is conducted in a narrow space, the test wiring is not easy to fix at present, the test wiring is often easy to suspend in the air, and the short circuit stability is affected are avoided.