The research on open education resources has been conducted over a decade. However, there are several important issues that need to be addressed, for example, what is the current development status of open courses, and what are the problems faced. In this paper, we conduct a survey of open courses in China, including its current deployment status, influencing factors and future trends. We found many factors affecting the use of National High-Quality Courses. We aim to improve the quality of open courses, share high quality education resources and promote equity in education.