The subject of public demand refers to the general knowledge and skills that all professional and technical personnel should master according to the unified requirements of the country, province and city (English and computer are implemented according to the original regulations and are not included in the registration scope). Professional and technical personnel learn public subjects mainly to broaden their thinking and horizons, improve their quality, and make them jump out of professional restrictions and see problems more comprehensively. Continuing education is an educational activity for all members of society, especially adults, after school education, and it is an important part of lifelong learning system. As the world economy and society put forward higher requirements for continuing education, the practice field of continuing education has been developing and the research scope has been expanding and deepening. In particular, the concept of lifelong education has been accepted by more and more people, and the position, function and methods of continuing education in the economy and society have been preliminarily understood and practiced, and the scientific research of continuing education has also made great progress.