abstract:in recent years,china's sustained a rapid increase in foreign exchange reserves.by the june 2009,china has than 2.1 trillion u.s.dollars,which ** the highest in the world.china trillion u.s.dollars in reserves has become a international **sue in the financial cr**** times,how to use theforeign exchange reserves has become a concern at the international financial cr**** as well as in the **.the ** focus on the impact on china's foreign exchange reserves. keywords:foreign exchange reserves;management model;active management;system;usage