Congestion　pricing　has　bilevel　characteristic,　in　which　the　upper　level　is　the　urban　traffic　administrative　department　and　the　lower　level　is　the　users.　The　essay　applied　bilevel　programming　model　to　build　up　congestion　pricing　model　under　the　assumption　that　travel　cost　only　relates　to　travel　time.　The　genetic　algorithm　was　discussed　to　solve　the　problem　of　the　programming　model　in　the　essay.　Results　show　that　bilevel　programming　model　can　effectively　solve　problems　of　complicated　congestion　pricing　and　that　the　genetic　algorithm　can　quickly　converge,　and　can　meet　the　needs　of　model　precision.