The utility model relates to the discharge connection of storage batteries, specifically to a storage battery and discharge instrument connection device with insulation caps. The storage battery and discharge instrument connection device with the insulation caps comprises a red connection unit and a black connection unit. The red connection unit comprises a red wire and a plug and a wire clamp which are connected to the two ends of the red wire. The black connection unit comprises a black wire and a plug and a wire clamp connected to the two ends of the black wire. The plugs of the red wire and the black wire are covered with the insulation caps in a sealed manner. The insulation caps are provided with traction ropes tied to the wires. The storage battery and discharge instrument connection device has the advantages that the insulation caps prevent the plugs from being exposed in the air and being oxidized so that during connection, collision of the plugs of the red connection unit and the black connection unit is prevented, the short circuit of a storage battery is prevented, the safety of the storage battery can be guaranteed during connection, and the problems that copper plugs of a discharge connection device are prone to oxidization and a storage battery is prone to short circuit during connection of the discharge connection device are solved.