Stackelberg　game　is　applied　to　optimally　coordinate　variable　speed　control　and　ramp　metering　in　order　to　relieve　rush　hour　congestion　on　urban　freeways　in　this　paper.　Variable　speed　control　can　stabilize　and　smooth　traffic　flow　and　improve　traffic　safety.　Ramp　metering　can　improve　freeway　flow　and　traffic　safety　by　adjusting　the　metering　rate.　After　the　interaction　between　variable　speed　control　and　ramp　metering　is　analyzed,　we　formulate　variable　speed　control　and　ramp　metering　as　a　Stackelberg　game　with　a　leader　and　multi-follower.　Variable　speed　control　is　regarded　as　the　leader　and　on-ramps　as　the　followers.　Within　this　framework,　we　propose　a　Stackelberg　game　model　of　variable　speed　control　and　ramp　metering.　At　last,　we　use　a　simple　network　to　illustrate　our　approach　and　the　simulation　results　show　that　this　approach　is　effective.