Therefore, it is very important to optimize and innovate the PE teaching mode. Although the current situation of the public PE curriculum is not optimistic, as long as schools and teachers pay enough attention to the PE curriculum, change the work concept and innovate the work mode, the teaching quality of the PE classroom can be improved. The optimization and innovation of PE teaching mode is the key content of the current PE reform, but many PE teachers are not good at improving the professional quality of students. PE is the most important stage in cultivating students' physical ability and quality. Moreover, he is also an instructor for children to participate in physical learning and exercise, and is concerned about the physical and mental health of children. Therefore, public PE teaching should overcome the drawbacks of the previous teaching mode construction, and perfect and optimize the public PE teaching mode from the perspective of professional orientation. To meet the actual needs of students, in order to improve their physical fitness, social adaptability and comprehensive quality, so that students can quickly adapt to the work environment. Mastered sports knowledge and skills as the main starting point, combined with the current situation of its sports teaching content, put forward the overall idea of its sports teaching content reform. This paper mainly analyses the difficulties of the reform of PE from the perspective of Vocational guidance. This paper elaborates the construction of the guarantee mechanism for the reform of PE under the guidance of occupation.