Introduction: from the perspective of positive development, the search for well-being acquires great relevance, since it is suggested that the human being will be in constant search of well-being through the different stages of his life. This construct has been studied from two approaches: from the point of view of psychological well-being and from the point of view of subjective well-being. The literature suggests that the tendencies of contribution and help towards the people around us favor the state of well-being and healthy development, therefore, some authors indicate that prosocial behaviors should be favored especially in the adolescence stage, to promote an adequate development of individuals. Method: a non-experimental, cross-sectional study with a descriptive and correlational scope was carried out, the objective of which was to analyze the impact that prosocial behavior has on wellbeing, both psychological and subjective, in the adolescent population of Mexico. For it had a nonprobabilistic convenience sample of 803 adolescents, with a mean age of 14.87 years (49.1 % were men and 50.9 % were women). The Prosocial Tendencies Instrument was used, which consists of three dimensions: 1) emotional support, 2) recognition and 3) altruism. In addition, the González Fuentes (2013) Psychological Well-being scale was used, which is made up of seven dimensions: 1) life purpose, 2) personal rejection, 3) personal control, 4) planning for the future, 5) selfacceptance, 6) positive relationships with others, and 7) personal growth. The Dienner Life Satisfaction scale adapted for the Mexican population was also used to assess subjective wellbeing. All the instruments used have been previously used in the adolescent population in Mexico. Results: Pearson's correlation analyzes were performed to determine the relationship between the dimensions of prosocial behavior with the dimensions of psychological well-being, as well as with subjective well-being. The results of these analyzes showed significant relationships in most of the dimensions of prosocial behavior with the dimensions of psychological well-being and subjective well-being. To analyze the effect of prosocial behavior on the dimensions of psychological and subjective well-being, multiple linear regression analyzes were performed, step by step, which showed that the dimensions of prosocial behavior were predictive variables of both subjective and psychological well-being, with percentages variance from 7 % to 24 %. Discussion: the data are discussed in light of the perspective of positive development, where it is stated that adolescents are a source of resources and possibilities rather than conflicts, so it is suggested to promote prosocial behaviors in them to favor their development. [ABSTRACT FROM AUTHOR]