Because China audience really likes costume dramas, but liking costume doesn't mean liking historical real costumes. Of course, the director should shoot costume dramas according to the audience's preferences. For costume dramas, flying flowers under the moon is obviously more important than simple and elegant costumes. Although there is no conflict between the two, if the audience does not have the requirement of dress restoration, but prefers all kinds of gorgeous studio clothes and tall decorations, then why should the director spend money and bother to study clothes? Demand determines the market, and the essential problem is that the audience doesn't like to watch historical dramas. Although many costume dramas are cloaked in history, they are not historical dramas after all. It can only be said that it is martial arts drama, palace fighting drama, romance drama, aerial drama and fairy drama. If the audience can understand history and historical costumes, they will know that there are dresses and casual clothes; Know the difference between deep clothes, gowns and skirts; Knowing that Wei Jin loves to be loose, Tang Dynasty loves to be gorgeous, and Song Dynasty is so narrow, thin and elegant, he will spontaneously hate and resist all kinds of inferior costume dramas. Directors without history and culture will naturally be eliminated, and we will feel that there will be more well-dressed film and television works.