In recent years, earthquakes occur frequently. In order to prevent earthquake disasters effectively, our country pays more and more attention to earthquake prevention and disaster reduction, and vigorously promotes the construction of earthquake safety community. At the same time, the economic evaluation of earthquake safety community also requires more scientific, objective and accurate. Therefore, this paper first analyzes the seismic safety community economic indicators, and establishes the index system of earthquake safety community economic evaluation. In order to improve the accuracy of economic evaluation and avoid subjectivity in the evaluation process, this paper selects the PSO-LS-SVM (least squares support vector machine) model for the economic evaluation of the earthquake safety community, and establishes an evaluation model. The empirical analysis shows that the evaluation results of the model are very close to the actual economic situation of the earthquake safety community, and can be applied to the economic evaluation of the earthquake safety community.