【摘要】Theory of industrial organization told us that Industry structure affect the profitability, it will also affect the enterprise's market strategy and will have indirect effect on profitability through the effect of strategy. This article present an empirical research on Chinese life insurance industry with the structure equation model as a tool,the results told us that the industrial structure has positive effects on enterprise's profitability and market strategy,and market strategy has negative effect on profitability so the industry structure has negative indirect effect on profitability, but the positive effect is more power than the negative effect. This article suggest that Chinese should continue it's opening policy and advance the cooperation in life insurance industry, and the life insurance companies should be enterprising in product innovation and investing strategy.