An automobile door that is significantly easy to fabricate, enhanced in ease of assembling door components, and reduced in the number of parts to be mounted. The door comprises an outer panel and an inner panel. The inner panel is composed of a main panel made of metal and a resin-molded sub panel formed integrally with the main panel. The inner panel is formed with a mount on which door functional parts to be mounted on the door are mounted. The inner panel is also formed integrally with electrically connecting means for connecting these door functional parts with each other.