Abstract: Samuel Johnson is the famous English writer of the eighteenth century and the Life of Savage is an important and representative work of his early life. Ever since its publication, this biography has been widely read and interpreted by the readers and critics of all ages. This paper analyzes the textual facts of the Life of Savage in detail, looks into the true prototype of biographical subject, Richard Savage, finds out some fictional elements that are merged into his real life story, reveals the similarities between this biographical subject and typical heroes of romance and fictional novels through proper comparison, testifies the influence of biographical narrator's voice on the thematic representation, and demonstrates how Johnson integrates facts and fictional elements into the truthful narration of Savage's life experience and realizes his intention of teaching moral lesson through biographical writing. The whole investigation shows that fiction in the Life of Savage serves for a better representation of true human nature, the eternal and universal reality.