, and takes bus headway regularity as the main optimization goal to establish The multi-line busРcontrol optimization model realizes real-time dynamic and precise control of the bus on all lines. While ensuring aРregular headway of the bus, the overall delay of the bus and the impact on other social vehicles should beРminimized. Taking the M390 bus line in the central area of Futian, Shenzhen as an example, using VISSIM toРsimulate and verify the model, the results show that the multi-line bus dynamic control optimization model basedРon the headway established in this study can have a little impact on other social vehicles, theheadway regularity isРincreased by 84%, and the overall delay of buses is reduced by 12%.Р Key words:Bus Signal Priority; HeadwayRegularity; CVIS; Multi Bus Lines