Battery pack circuit breaking unit and battery pack

The utility model provides a battery pack circuit breaking unit and a battery pack. The battery pack circuit breaking unit comprises a base and an upper cover, the base and the upper cover are closed to form an accommodating cavity, a component is arranged in the accommodating cavity, and the base is provided with an avoiding part; wherein the component comprises a positive electrode output piece and a negative electrode output piece, and the positive electrode output piece and the negative electrode output piece extend to the avoiding part from the containing cavity. In the embodiment of the utility model, the avoiding part is arranged on the base, and one end of the positive output piece and one end of the negative output piece in the component extend into the avoiding part, so that the positive output piece and the negative output piece can be directly connected with the connector in the avoiding part, and an additional connecting copper bar is omitted; the cost is reduced, and the process is simplified. 本