Abstract: Objective A index system was established to evaluate social function of aging of healthy life from the perspective of epidemiology, sociology and elderly health care with guide of modern medical model. Methods Social function of aging evaluation index system and weight coefficient were established by literature collection, modified Delphy (Delphi) and analytic hierarchy process (AHP). The reliability and validity of the scale were evaluated through internal consistency reliability analysis, correlation analysis, and exploratory factor analysis as well as indicator extraction. Results Three aspects and 13 indicators were ultimately included according to the mean and coefficient of variation of importance and feasibility score. The Cronbach's α coefficient of the scale was 0.873. The test-retest reliability coefficient was 0.848 (P<0.001), and CVI (content validity index) was 0.836. Three common factors were extracted through the construct validity analysis which accounted for 53.69% of the variance of the original indicators with factor analysis, the communality of the indicators were 0.573-0.776. Conclusions Those indexes are of good representation and recognition. Indicators included reliability, content validity index, and construct validity are also good. The dispersion of index score, the correlation coefficient of index score with total score and load of each factor are basically reached the related standard. It can provide the judgment of aging for any one and had good value and prospect.