A connecting member for a secondary battery to achieve electrical connection with physical contact fashion in a battery pack including at least two cylindrical secondary battery, and the peripheral contact portion, the outer peripheral contact portion, the electrode terminal of the lower battery cell, in contact along the outer peripheral area of the electrode terminal of the lower-side battery cell, the outer peripheral contact portion, electrical surface contact manner to the power terminal of the lower-side battery cell connect to suppress the change in resistance to the external force in the contact area to a minimum, it is possible to suppress the possibility that the electrode terminal of the lower-side battery cells dented, and the central contact portion, the central contact portion, an upper in contact with the central region of the side wall of the electrode terminal or the battery pack of the battery cell, the mounted between the electrode end Kokan or the electrode terminal and the side wall of the battery pack of the battery cell of each battery cell including, providing a resilient contact force throughout the connecting member, discloses a connecting member.