The　purpose　of　traffic　congestion　pricing　is　to　reassign　the　traffic　volume　for　the　whole　road　network.　The　problem　of　determining　optimum　toll　is　stated　by　game　theory.　The　interaction　between　road　authority　and　road　users　can　be　considered　as　a　two-level　game　model　with　N+1　players.　The　two-level　game　model　of　congestion　pricing　is　proposed　and　the　game　equilibrium　is　analyzed　in　the　paper　by　introducing　a　virtual　road　network　as　an　example　to　figure　out　the　optimum　toll.　The　objective　of　congestion　pricing　game　is　to　find　system-optimal　tolls　and　user-optimal　traffic　flows.