Objective: to understand the perception of health professionals regarding the implementation of a prenatal qualification course from an interprofessional perspective. Method: action research conducted from August to November 2022, with the participation of 47 professionals from Primary Health Care and hospital institutions from 33 cities that make up a Regional Health Coordination in southern Brazil. Results: data analysis allowed the delimitation of two thematic categories: Training: professional constructions and reconstructions; and Network articulation: weaknesses and perspectives. The prenatal course, with an interprofessional focus, was a driving tool for integration, dialogue and enhancement of initiatives aimed at qualifying prenatal care. Conclusion: the implementation of the prenatal qualification course enabled the expansion of knowledge and the (re)construction of interprofessional practices capable of inferring in the maternal and child health care network.