Medical students constitute a small part of the university population and are young people with high level of knowledge and creativity that the state focuses on training. They are important human resources to meet the industrial expectations, typically for national health. The employment of medical college graduates is not only related to the happiness of thousands of families, but also related to the quality of people's life and health, economic development, and social stability in China. In the face of increasingly severe employment situation, how to alleviate the "employment difficulty" of college students has aroused widespread concern in the society. In career planning education, the medical college students should be encouraged to know themselves, improve themselves, and improve their employment competitiveness. At present, the career planning education of college students in China still remains at the level of employment guidance, which needs to be constantly improved. The discussion on the service dimensions that need to be provided for the career planning of medical college students is not thorough and comprehensive. On the basis of the existing research, from the perspective of education, management and other disciplines, guided by relevant theories, this paper discusses the service dimensions of medical university students' career planning in a more in-depth and systematic way by using literature research methods. This paper follows the research idea of "status investigation -- finding problems -- suggestions". First in this paper, the medical college students' career planning service involved in the core concepts and related theories, and then influence the effect of medical college students' career planning services dimension analysis of the status quo to find the main problems and the reasons put forward to further strengthen and improve the service effect of medical college students' career planning. The service quality gap model is discussed and a career planning service quality framework is proposed.