To provide a fixing structure in which conductivity can be secured by using an existing screw as it is and without using additional parts such as a washer except the screw.

In the structure in which the screw or the like having a head part for fixing is formed of a material with excellent electroconductivity and a plurality of structural bodies are fixed by the screw or the like having the head part, a plurality of the structural bodies are constituted of the material with excellent electroconductivity and the fixing structure is so constituted that a projected shape is formed on the surface of a structural body in a range to be hid in the head part of the screw or the like of a hole through which the screw or the like having the head part for fixing a plurality of the structural bodies is passed and the projected shape comes into contact with the head part of the screw or the like during fixing.