The subject of values is considered as one of the most important concepts in various fields of human sciences, especially sociology. This study has been done with the aim of investigating the difference of values among the generational groups of Gorgan city using the survey method while examining the types of social values in different schools. In the present study, the statistical population included NGO members over 18 years of age in Gorgan city with a statistical sample of 366 people, which was formulated based on the Schwartz theory of basic values. According to the results of the descriptive findings, 36% of the respondents had individualistic values and 64% had collectivist values. The results of inferential research using One-Way ANOVA, T-test and Kruskal-Wallis tests indicated that there was a significant difference between the social values among the three generations of Gorgan city, so that the social values of the third and second generations and the values of the third and first generation were different from each other. But no significant difference was observed between the values of the second and first generations, also a significant difference was observed between the types of positions, with social values. Manuscript profile