Erhu is a traditional Chinese musical instrument with beautiful and unique sound, which has a history of over a thousand years in China. In the long river of history, the playing technique of Erhu has always existed among folk artists through word of mouth, and its true development began with the modern Erhu playing school founded by ethnic musician Mr. Liu Tianhua a hundred years ago. With the progress of the times, Erhu not only needs to be inherited from tradition, but also needs to be innovated to meet the needs of modern society. To keep pace with the times and the world, traditional Chinese music requires artistic innovation. The revival and prosperity of ethnic music is the historical mission of every musician in the new era. To spread Chinese culture, traditional Chinese music needs to "go global", absorb foreign culture, and promote Chinese culture abroad in order to achieve cultural integration and sharing. Erhu Music Planet emphasizes the use of various presentation methods to stimulate the enthusiasm of college teachers and students to apply online education and teaching resources, expand teaching time and space, reflect the concept of curriculum reform, promote the reconstruction of teaching organization and innovation of teaching methods, and promote the integrated development of online and offline education. Online course teaching resources include video teaching, online learning task sheets, and post class exercises; Gradually establish resources such as a theoretical knowledge test question bank, a video library of key and difficult points, and a library of excellent performance works. Empower teachers to teach according to their aptitude, fully utilize big data technology, strengthen the collection of information on students' learning process, accurately analyze learning situations, promote differentiated, interactive teaching, and personalized guidance. Overall, our mission is to promote erhu art through education, practice, creation, and innovation, so that more people from different countries can understand and love this beautiful traditional Chinese music.