The influence of Yu Dafu's autobiographies on teenagers can be considered from the following aspects: 1. Invigorate young people's interest in literature: Yu Dafu's autobiographies vividly and delicately describe various characters and events in China's feudal society. It can help young people understand history and human nature and stimulate their interest in literature. 2. Cultivate teenagers 'imagination and creativity: Yu Dafu's autobiographies often use rich imagination and vivid descriptions to help teenagers cultivate their own creativity and imagination, so that they can experience the joy of literature in reading. The characters in Yu Dafu's autobiographies all have their own unique outlook on life and values. These values include loyalty, courage, perseverance, love, etc., which can help teenagers reflect on their own outlook on life and values and learn the correct truth of life from them. 4. To improve the writing ability of teenagers: Yu Dafu's autobiographies are rich in literary elements and writing skills, which can help teenagers improve their writing ability and better express their thoughts and feelings. Generally speaking, Yu Dafu's autobiographies have a positive impact on teenagers. It can help them better understand history and human nature, cultivate imagination and creativity, enlighten their outlook on life and values, and improve their writing ability.