This study is entitled Imitative Behavior of the Main Character in Eka Kurniawan's Lelaki Harimau Novel. It aimed to determine the imitative behavior of the main character in Eka Kurniawan's Lelaki Harimau novel. This was descriptive qualitative research. The data collection technique used in this study was a reading and note-taking technique. Furthermore, the data analysis techniques included data reduction, data presentation, and data verification. The imitative behavior of the main character in the novel was described by the author using characterization methods with dramatic techniques and analytical techniques. The result showed that the imitative behavior of the main character in Eka Kurniawan's Lelaki Harimau novel was influenced by internal and external factors. The internal factor included the psychology of the main character. Meanwhile, the external factors included family and friends. The imitative behavior of the main character found in this study was negative imitative behavior.