Ba Jin's writing style changed in the 1940s and was influenced by modern literature. Ba Jin's works in the early 1940s mainly showed romantic emotions and idealistic ideas. Many of his novels described the beautiful side of human nature, such as "Home","Spring","Autumn" and so on. These works were full of affection and appeal, and were deeply loved by readers. With the change of times, Ba Jin began to accept the ideas of modern literature and began to explore the complexity of human nature and the deep-seated problems of society. Many of his works began to have depth and complexity, such as "Oliver Twist","Twenty Years Later" and so on. These works not only paid attention to human nature, but also society and history. Ba Jin's writing style in the 1940s was influenced by the modern literature and began to develop in the direction of depth and complexity.