The deep integration of digital technology and education is an important trend in current higher education reform. Knowledge graph, as an emerging technology, plays a significant role in promoting the quality of curriculum construction and improving teaching effectiveness. There are pain points in the traditional teaching of labor economics courses, such as the lack of hierarchical course objectives, traditional course content design, flat course resource construction, and single course evaluation feedback. Based on this, this article uses knowledge graphs to explore the path of mixed course construction in labor economics, and proposes countermeasures to solve the pain points by redesigning course structure and content, integrating related teaching resources, using graphs to assist mixed teaching, and multi-dimensional graph evaluation, in order to enhance students’ higher-order thinking ability, life growth experience, personalized learning needs satisfaction, and comprehensive literacy evaluation effectiveness.