In response to the challenges faced by application-oriented universities in cultivating software engineering major, such as inadequate practical skills, limited innovation capabilities, and narrow interdisciplinary perspectives, this paper systematically investigates the development pathway for a "first-class undergraduate majors" grounded in Outcome-based Education (OBE). Using Daqing Normal University's software engineering major as a case study, this paper elaborates on specific measures and outcomes of major construction from three key areas: refining training objectives, optimizing the "three-stage progressive" curriculum system, and enhancing industry-education integration and collaborative education mechanisms. Through these comprehensive professional development initiatives, the overall strength of the major has significantly improved, with a clear focus on serving the petroleum and petrochemical industries. Consequently, students' professional competencies and employability have been notably enhanced. The OBE-based approach to professional construction effectively addresses the mismatch between talent supply and industrial demand, providing a replicable and scalable model for similar universities.