Demographic structure shift may have deep impact on the development of life insurance market. Based on the description of demographic natural structure, demographic social structure and demographic regional structure and the theoretical analysis of the impact of demographic structure shift on life insurance market, the paper constructs the test model to test the impact concerned in Jiangsu province. The results show that the youth dependency ratio, the married population ratio and the urban population ratio havea po sitive impact on the life insurance market while the sex ratio has a negative impact on the market, and the old dependency ratio, education ratio and average household scale have insignificant impact on the market. Based on the analysis, this paper proposes several strategies for future development of life insurance market in Jiangsu province. The strategies include noticing gender difference, paying close attention to growth of teenagers, innovating endowment insurance, considering family structure, placing emphasis on insurance education and caring about urbanization.