Subprimecrisis which burst upon in America has produced badly influence on the real economy in the world Financial servicing units will show large number of loss in the financial statement if they continue to deal with financial assets and liabilities in fair value Under this condition, many related bodies have begun to attack on fair value However, does fair value act as activator of the spread of financial crisis? The development of financial products has boosted the use of fair value Will the financial crisis “kill” fair value? The paper tries to answer it