This is a new educational platform, and more and more institutions are also developing this educational resource to expand their influence. Distance education has many advantages, such as unlimited learning, rich content, authoritative knowledge and quick updating, but it also has its own shortcomings, such as slow feedback and vivid face-to-face teaching. I think distance education is a good tool to promote knowledge platform. Everyone can not only learn all kinds of knowledge, but also be free. Students who want to enrich their knowledge can try. I recommend two platforms: TED and Netease Open Class.