Does the subject want to ask, "What is the reason why there is no video material in the inheritance of classical dance?" Lack of a strong concept of cultural facilities construction, no habit of saving film and television materials. Classical dance is a dance developed from China opera dance and China Wushu. In the process of inheritance, there is no image data because of the lack of strong cultural facilities construction ideas and the habit of keeping image data. The reason is the condition that causes a certain result or another thing, which also refers to another thing that causes a certain thing in philosophy.