Yu Hua's writing style changed significantly after the 1990s, mainly in the following aspects: 1. Narration: Yu Hua began to pay more attention to the personality and uniqueness of the narrative after the 1990s. He no longer used the traditional grand narrative as the theme, but paid more attention to the exploration and self-expression of the characters. 2. Use of language: Yu Hua began to use more oral and straightforward language after the 1990s to make his works more appealing and realistic. 3. Thematic discussion: Yu Hua's works after the 1990s were no longer limited to social reality, but focused more on the discussion of human nature, life and existence, and more on the expression of the inner world. 4. Changes in style: Yu Hua's works after the 1990s have become more diverse. There are war, history, and social topics similar to the early works such as Alive and Shout in the Drizzle, and there are also novels similar to the life, humanity, and existence topics of the middle works such as Brothers and Xu Sanguan's Blood Selling Story. Yu Hua's style changed after the 1990s. He paid more attention to the exploration and expression of the inner world of the individual. He paid more attention to the discussion of human nature, life and existence, making his works more infectious and realistic.