To provide a control system for an automobile door capable of simplifying a routing system, reducing cost by eliminating an overlap of power lines, reducing efforts required for routing work, and improving safety.

The automobile doors 31-34 respectively include control units 21-24 for controlling operation of power window motors 41-44 and door locking motors 51-54. The control units 21-24 are connected with each other via a signal communication line L52. Two branched power lines are arranged on left and right of a car body 1. The right power line L50 is connected with both of the control units 21, 22 on the right via a right power fuse 10-R, and the power line L51 is connected with both of the control units 23, 24 on the left via a left power fuse 10-L.