Private Equity Investment is a financial innovation under new economic situation,which highly contributes to the transformation of saving to investment,the cultivation of multi-hierarchy capital market,the reduction of financial risk,and the, promotion of hi-tech industry.It is proved by the practice of U.S.,Europe,Japan and other developed countries.China,who is in a emerging and transition economic development stage,is in urgently need of speed of speed up the upgrading of the industrial structure and bui...