Professional core ability can be neither a professional and technical ability in a certain field of application, or a social professional position for the actual work ability. The core competence of the profession is mainly to improve the working ability of graduates, so as to improve the employment rate of school graduates and the quality of education and teaching, in order to achieve the goal of talent training. Professional core competence is neither the meta-ability in psychology nor the basic ability in education, but the comprehensive ability for professional work. In higher vocational education, to cultivate "high-skilled, applied" talents, we must take the cultivation of professional core competence as the focus of vocational ability training. In traditional teaching, colleges and universities pay more attention to the cultivation of general competence, such as basic skills, basic knowledge and basic ability, and despise the cultivation of professional core competence; The cultivation of core ability can effectively connect with professional positions and guide students to complete tasks in the specific work process. The cultivation of professional core competence must be combined with comprehensive practical teaching, introduce large-scale project comprehensive examples in curriculum teaching, break down the specific tasks of the project into each course, teachers lead students to simulate the work process in professional posts to complete each task, through practical teaching to let students understand the importance of professional core competence in professional positions.