To provide a signal connection jig by which a time required for adjustment and inspection can be reduced in the case of adjusting or inspecting an electronic equipment having cylindrical terminals where the inner circumferential part is used for a signal electrode and an outer circumferential part is used for an earth electrode.

The signal connection jig 50 is provided with pin terminals 7 that are inserted to an inner circumferential part of adjustment inspection terminals and in contact with only the inner circumferential part, and pin plugs 6 consisting of pins 6a that are in contact with the inner circumferential part of the adjustment inspection terminals and of cylinder sections 6b that are in contact with an outer circumferential part. The pin terminals 7 are adopted for at least parts of the terminals to decrease a force required to mount the signal connection jig 50 to the adjustment inspection terminals so as to increase the number of terminals.