asset securitization ** the most important creative financial tool in the end of th** sentury.the promotion of th** tool has not only a bright future,but also very important strategic meaning.however,there are still some problems with asset securitization promotion in china.th** article bases on the analys** of the development,pract**e and characters of american asset securitization.it d**cusses the influence of asset securitization to the capital market and financial system in our country.apart from that,the problems of asset securitization development are also studied and finanlly it comes to the conclusion that it ** very necessary to promote asset securitization in china.