Supportive action is one of the expressions of warm interaction between people in society, which is done by people having different reasons and motivations and under different conditions. This study was conducted to investigate the conditions governing the supportive actions and people’s strategies. In order to achieve the goal, support action and the conditions of its occurrence in different schools of sociology and the opinions of the main experts in this field were reviewed. Then, using the grounded theory, an in-depth interview was conducted with 22 people living in the city of Mashhad, about different experiences of supportive actions and the reasons for doing them.  Since in this research, reaching the maximum diversity of the perspective of the actors was considered, purposeful sampling was used. The main criterion for the selection of participants was experiencing the phenomenon under study. For this purpose, first some indicators such as religious view, age group, education, income, and economic origin were determined so that completely different examples can be considered based on them. The interviews were coded in open, central and selective levels. Finally 35 main categories were identified, which were placed in four categories of conditions (causal, interventional and contextual), action strategies, consequences, and core categories. The results showed that the core category was identified under the title “mixing of pre-modern semantic receptions and modern instrumental patterns in the promotion of support actions”. Another core category was identified as “going from family-oriented, religious, duty-oriented support to community-oriented, duty-oriented support”.