Because reference in-service teachers can't make up lessons with pay, in-service teachers will charge some fees when doing webcasting courses, which is an extension of paid make-up lessons. Second, the education department will not supervise the live webcast of in-service teachers' entertainment or sales of products outside the teaching tasks. On the one hand, as long as teachers finish their jobs, the education department has no right to interfere in other affairs. On the other hand, the teacher's live broadcast and business activities are legal. It should not be banned.