To provide a vehicle assembly line capable of reducing total length of the assembly line as compared with a conventional one and of reducing the number of times of changing methods of supporting a vehicle body as compared with a conventional one.

In the vehicle assembly line assembling parts in order on a vehicle body after a painting process to complete the vehicle through a inspection, a parallel assembly line assembling parts on the vehicle body from a vehicle body bottom part and assembling parts on the vehicle body from a vehicle body upper part in parallel is included.