Abstract: Along with the economical development,our country economy continually increase depending on international hard resources.In international market three big suppliers have formed the oligopoly and controls the market prices.At present Our country is the biggest buyer and main iron ore increase demander in the world market,thus this paper study ore price mechanism,and how to use the biggest buyer behavior well,how to gradually weaken the international iron ore seller's monopoly,and how to realize the aim of reasonable utility,stabilizing the ore market and stabilizing our economy.