As a new online teaching mode, large-scale online courses have entered people's vision and brought great influence to traditional higher education. According to the preset teaching objectives, subject characteristics, students' cognitive laws and teaching methods, this paper focuses on the core concept of the curriculum and the relationship between teaching content and resources. The content and resources of teaching, teaching design, teaching activities and evaluation, teaching effects and impact, team support and services, information security and intellectual property protection were explored, which can provide reference for the construction of fine online open courses. It can also be used for mixed teaching.