Continuing education refers to all kinds of education received by people who leave formal education, take part in work and have adult responsibilities. It is an advanced supplementary education for professional and technical personnel to update, supplement, expand and improve their abilities. Specifically, the concept of continuing education includes the following four meanings: first, continuing education is a non-academic adult education; Second, the educated have reached a certain level in academic qualifications and professional skills; Third, the content of continuing education is new knowledge, new technology, new theory, new method, new information and new skills; Fourth, the purpose of learning is to update and supplement knowledge, broaden horizons, improve knowledge structure and improve innovation ability to meet the needs of scientific and technological development, social progress and our own work.