The embodiment of the invention provides a switching device for simplifying check discharge wires of a storage battery. The switching device comprises the storage battery, a storage battery management unit and a storage battery discharge instrument, wherein the storage battery is connected with the storage battery management unit; the storage battery management unit is in communication connection with the storage battery discharge instrument. According to the switching device disclosed by the invention, the operation of reading the voltage of each storage battery monomer wire is avoided; the voltage of a single storage battery body is directly read from the storage battery management unit and is transmitted to the storage battery discharge instrument for performing a check discharge test.