To avoid such inconvenience that the entire contact dome coupling sheet becomes defective in the case where variation occurs among a plurality of contact domes and any one of load characteristic, resistance value, and the like strays from a regulation value.

A contact dome coupling sheet 11 includes a plurality of contact domes 12 containing a movable contact point 18 that can contact to a fixed contact point 9 provided at a circuit board P, for electrical conduction, and a sheet-like base part 13 which couples the plurality of contact domes 12 together. The contact dome 12 has a rubber-like elastic body and includes a pressurizing part 17 whose lower end has the movable contact point 18, with an upper end receiving a pressurizing operation, a stage part 15 on which a circuit board P is placed and which is bonded to the base part 13, and a skirt 16 which extends upward from the stage part 15 to connect to the pressurizing part 17. The base part 13 is made from resin film, and a bonding part for bonding to the base part 13 is provided in a stage part 51 which is away from a bottom surface 15b of the stage part 15.