validation research is carried out in this paper to find out whether happiness of citizens with different individual
characteristics and life indexes is different, and what factors exert an influence on happiness. 271 urban residents were
taken as the survey respondents, and stratified sampling was employed in this research to compare and analyze happiness
of citizens with different individual characteristics and life indexes. Pearson's Correlation Coefficient was used to determine
the relationship among the three, and a standardized regression equation was established to construct the model influence
for citizen happiness. The research findings illustrate that the relationship of family and marriage, income, generations
and living environment can predict the happiness level of citizens, and that economic factor is still crucial to prefecture-
level cities in the middle. Recommendations are countermeasures are presented as per the findings.