The purpose of this study is to examine the relationship of social axioms (a kind of generalized belief) and prosocial behaviors. Social axioms are defined as generalized beliefs about oneself, the social and physical environment, or the spiritual world. As suggested by Leung et al. (2002), one of major functions of these social axioms is to guide individual’s behaviors. Previous studies demonstrated social axioms’ five dimensions were related to different aspects of human behavior, such as coping style, finial behavior, and bias attitudes towards the aged people. Prosocial behavior refers to individuals’ tendency to undertake voluntary actions aimed at benefiting others, such as sharing, cooperation, and helping. From an evolutionary point of view, the characteristic of helpfulness might have evolved as it contributes to individual genes being passed on to the survival of the individual genes being passed on to the survival of the pieces. The early studies of prosocial behavior were focusing on the environmental factors of why people offer to help. For example, bystander’s intervention and the diffusion of responsibility may reduce people’s tendency to volunteer to help. In the subsequent studies, much more researches have been conducted to analysis why people help, and people’s empathy, personality, attitude and belief have all been found to be related to prosocial behaviors. As previous studies of social axioms have demonstrated the relationship of social axioms and behaviors, the question raised in present study is whether there are relation exiting on social axioms and the prosocial behaviors. To answer that question, we designed a serious of studies in our study. The study measurements included survey, laboratory experimentation and field experimentation. In study one, questionnaires were used to test the relationship of prosocial behavior tendencies and social axioms. Participants were 143 undergraduate students in Beijing, and data results demonstrated that the five subscales of social axioms were correlated with prosocial behavior tendencies. In the studies two, study three and study four, both experimental design and field experimental design were adopted. We selected three typicial prosocial behaviors which are cooperation, sharing and helping to further analysize the functional mechanism of social axioms’s predictiong power to prosocial behavior. Data results found that social axioms’s dimension of reward of application was correlated with cooperation, and social cynicism was correlated with sharing. Attitude could predict helping, and there exited a moderation of social cynicism and attitudes with helping behavior.