The dynamics of any society is constantly emanating professional information for its citizens, which becomes a relevant reference when it comes time to select and choose a profession, with the purpose of becoming active members of the social system. The purpose is to understand the motives and reasons that influence the vocational interest and choice that lead to the study of careers in mathematics. The qualitative methodology with phenomenological research design, supported by conducting in-depth interviews, helped to investigate the experiences that influenced the search, selection, and election process of fifteen (15) mathematics professors from the Simón Bolívar University, Venezuela, towards your decision to pursue a degree in mathematics. Forty-four (44) natural themes were identified, grouped into seven (7) categories, where their relationships gave way to the formulation of three (3) models (Individual aspects, Experiences with mathematics and Opportunity). Thus, we concluded that the interest and vocational choice for the study of careers in mathematics, develops from the articulation of individual and supra-individual aspects, helping the discovery the vocation through the gestation of vocational interests related to the area. The dynamics of any society is constantly emanating professional information for its citizens, which becomes a relevant reference when it comes time to select and choose a profession, mainly with the purpose of becoming active members of the social system. The purpose is to understand the motives and reasons that influence the vocational interest and choice that lead to the study of careers in mathematics. The qualitative methodology with phenomenological research design, supported by conducting in-depth interviews, helped to investigate the experiences that influenced the search, selection and election process of fifteen (15) mathematics professors from the Simón Bolívar University, Venezuela, towards your decision to pursue a degree in mathematics. Forty-four (44) natural themes were identified, grouped into seven (7) categories, where their relationships gave way to the formulation of three (3) models (Individual aspects, Experiences with mathematics and Opportunity). Thus, we concluded that the interest and vocational choice, to study a career in mathematics, is developed from the articulation of individual and supra-individual aspects, helping the discovery of the vocation through the gestation of vocational interests related to the area.