Land　as　the　important　element　of　house　has　the　huge　influence　of　the　house　price.　But　the　policy　of　local　government　and　land　nature　trait　result　in　the　failure　of　land　market　and　land　value　invalidation.　So　government　should　regulate　the　land　price　and　let　the　price　back　to　the　rational　level.　This　paper　from　the　point　of　all　kinds　of　interest　sides　gamed　the　land　price.　Analyze　the　land　selling　style　and　the　elasticity　of　land　price　regulation　to　search　the　efficient　price　regulation　in　real　estate　market.　In　the　ground　of　land　market,　government,　local　government　and　developer　have　the　different　utility　and　object　which　result　there　are　three　sides　in　the　land　game.　And　the　Nash　equilibrium　indicates　that　central　government　should　take　optimized　combination　supply　method　to　regulate　the　land　price　to　stabilize　the　house　price.　And　local　government　should　apply　with　the　policy　of　central　government　to　realize　the　utility　hypo-optimize.　The　game　between　local　government　and　enterprise　about　the　selling　of　land,　only　to　take　the　combination　Optimized　land　selling　method　and　increase　the　weight　of　biding　can　reach　the　purpose　of　regulating　the　land　price.　©　2014　Springer-Verlag　Berlin　Heidelberg.