There is provided a wiring board having small connection boards. In each of unit terminal groups (21) of a wiring board (1), two signal terminal members (22) and one ground terminal member (23) are arranged in this order in the direction that is perpendicular to the extending direction of the signal terminal members (22). The signal terminal members (22) and the ground terminal members (23) extend in the direction that is perpendicular to the arrangement direction of the unit terminal groups (21). The arrangement pitch of the two signal terminal members (22) of each unit terminal group (21) is equal to the pitch Pl of a pair of coaxial cables (30) connected to them. Resin films (41) maintain a parallel arrangements of plura1coaxial cables (30) in such a manner that the pitch P2 of two adjoining coaxial cables that are connected to adjoining unit terminal groups (21) is set longer than the pitch Pl.
