Disclosed is bio-signal measurement equipment whereby, even when long-period waves generated in the head are measured, measurement can be performed to the same level as when short-period waves are measured. The bio-signal measurement equipment is used for measurement of bio-signals in the head and includes: a forehead abutment part that abuts the forehead; an occiput abutment part that abuts the occiput; and a supporting body that is supported on the head held in the anterior and posterior direction of the head between the forehead abutment part and the occiput abutment part.