Abstract: The sense of a harmonious society is the subjective feeling of the masses about the construction of a harmonious society. Paying attention to it is conducive to better meeting the needs of residents for a better life and improving the level of social governance. The field theory is adopted to anlyze the degree of security, and the MIMIC model is used to analyze the dual effects of subjective security and objective security on the sense of a harmonious society. The empirical results show that the mean score of national harmonious society sense is 3.39, and the weighted factor score is 14.01, only 67.5% of the maximum scale score. The self-assessed socio-economic status, social medical insurance and endowment insurance have significantly positive effects on the sense of a harmonious society, and the effect of self-assessed socio-economic status is always higher than that of the other two factors. At the same time, societal fairness, life happiness and increasing age can significantly increase the sense of a harmonious society while increasing income and education level decrease it.