Internet autobiography presents a history of the internet through the lens of individual lives. As a genre of internet oral history and internet memory, it constitutes a unique approach to the study of internet history. This article examines the themes of internet history as presented in 224 internet autobiographies. The study finds that the sampled internet autobiographies not only reproduce the internet development process and the personal growth of netizens, but also changes innetizens' lives, as well as in their families and in society at large. Therefore, internet autobiography has the function of public writing and can be used to gain insights into the history of individuals and society. Internet autobiography is not only an important object of study in the research on internet history and memory, but also a research method worth popularizing.