The invention discloses a green wave coordination control method for multiline public transport in a main trunk line, including the design steps of: arrangement of a pre-signal public transport priority control facility, control treatment of turning public transport vehicles, and arrangement of a green wave coordination control system for the public transport in the main trunk line. According to the green wave coordination control method for the multiline public transport in the main trunk line, a green wave coordination control technology is applied to the public transport vehicles running in the main trunk line, and the turning public transport vehicles can be treated by a pre-signal public transport priority control facility and phasing adjustment measures, so that the passing efficiency of all the public transport vehicles in the main trunk line can be improved, and the total delay in the main trunk line is reduced at the point of per capita delay; and besides, the pre-signal public transport priority control facility is introduced at an intersection, the priority passing right of the public transport vehicles, relative to social vehicles, is ensured, and the public transport vehicles can not miss a green wave signal even if queuing up.