The application discloses UPS discharge device is including battery cabinet, discharging equipment and the UPS who places the battery, still including setting up backplate, the setting of battery cabinet one side are in direct current short circuiter and connection sheetmetal on the backplate, battery, direct current breaker, connection sheetmetal and UPS in the battery cabinet pass through connection cable and communicate in proper order, discharging equipment with connecting the sheetmetal and passing through the removable intercommunication of connection cable, this application is oversimplified discharge test's operation at to a great extent, has reduced the work of cable splice, but has got around little this drawback of maintenance space, discharge device became electroless operation with former hot -line operation in other words in addition, had improved the security in the operation greatly, had avoided the electric shock risk.