Many famous international enterprises have been reduced to the verge of bankruptcy in financial crisis of 2008,but some B2B E-commerce companies,Such as alibaba,have achieved impressive results.it is the key point for numerous small and medium-sized enterprises to seek the chances and novelty in the face of the rough and unclear economic enviornment.How do some E-commerce enterprises turn crisis into opertunities when the orders of export-oriented small and medium-sized enterprises drop and their clients go to bankruptcy.