A sampling circuit board for a battery module includes a main board including a plurality of electrical connection areas, and a plurality of sampling terminals respectively electrically connected to the plurality of the electrical connection areas. An end of each of the sampling terminals extends away from the main board, and each of the sampling terminals connected to one of the electrical connection areas of the main board via a connection member. The connection member includes a main body and a hook assembly provided on the main body, and the hook assembly stacks and bonds one of the sampling terminals and one of the electrical connection areas of the main board.