Wu Meizhen's " Sister Sunshine's Study " series was one of the famous youth literature series. It told the story of the protagonist Xiao Yu and her best friends at school and at home, depicting the growth, friendship, and love of adolescent students. The series presented a group of students on campus in a humorous, relaxed and realistic style. It also showed the psychological changes and emotional entanglements of adolescent students. The characters in the works were vivid, the plot was complicated, and the language was beautiful. They were deeply loved and sought after by the readers. Since its publication, the "Sunshine Sister's Little Study" series had been well received and hailed as one of the representative works of Chinese youth literature. It had been translated into many languages and was widely popular around the world.