The utility model provides a backpack electric perforator comprises perforating device and storage battery, the perforating device, including T shape handle, T shape is be equipped with switch on hand, and U -shaped motor support is connected to T shape handle lower extreme, installation direct current motor in the U -shaped motor support, the drill bit is connected to the output shaft coupling band of direct current motor lower part, the lower extreme of coupling band, U -shaped motor support lower part one side is equipped with the plant spacing scale, the storage battery is installed on storage battery back of the body frame, storage battery back of the body frame one side is equipped with the braces and fills up with the back of the body, switch on hand is connected to the power cord of storage battery and T shape. Beneficial effect: adopt the direct current starter motor, it is rotatory to drive the drill bit, and light flexibility, noiselessness, shockproof have improved user's comfort level greatly, and the user can dig the cave operation for a long time, applicable planting in crops such as tobacco, the cottons use of punching.