Strong literature is the expression of emotions in Chinese literary theory. The significance of this view is to emphasize the importance of literature as a medium to express emotions and thoughts. In Chinese culture, emotions were regarded as one of the most important subjects in literature. The emotions, thoughts, and emotional experiences of the characters in literary works are all important contents of literature. Strong literature refers to those literary works that can deeply express human emotions and inner conflicts. These works often have strong emotional colors that can arouse the reader's resonance and emotional experience. Therefore, powerful literature was regarded as an important medium to express emotions and thoughts in Chinese literary theory. By expressing strong emotions, literary works could better convey the author's thoughts and values, and at the same time, it could also attract the readers 'attention and emotional resonance, thus promoting the development and prosperity of literature.