第四个篇章论述了唐墓中花鸟题材图像在表现题材、表现技法及表现形式等方面

The fourth chapter discusses the changes before the late bird theme image theme in terms of performance, performance techniques and forms such as the Tomb, and explore the causes of the change, mainly explained in terms of religion, culture and society to promote artists and so on.

The fourth chapter discusses the pre-late changes in the performance of the theme, performance techniques and forms of the theme images in Tang Tomb, and explores the causes of its changes, mainly from the aspects of religious belief, social culture and painter's promotion.

In the fourth chapter, the author discusses the changes of the images of flowers and birds in Tang tombs in the aspects of theme, technique and form of expression, and explores the causes of the changes, mainly from religious belief, social culture and painter promotion.