Kinds of factors were analysed that influence the life insurance industry's growth from the qualitative aspect,such as GDP,income,population and its structure,social security,inflation,and so on.Then utilizing factor analysis,augmented dickey-fuller test and partial least square regression real diagnosis analysis was done by using relative data from 1990 to 2005.To avoid harmful effects due to multi-co linearity,partial least square regression was used to improve the model.The result fits in with theories a...