Diasporic writers are newly observed in the 21st century. Li Yiyun, as a prominent one from Asia, has won many prizes with increasing reputation and influence. Her novel A Sheltered Woman is analyzed by Antconc, a tool of Corpus research in massive data. This tool enables to demonstrate the theme and writing style through an analysis of diction and syntax. The mental complex of “viewing motherland overseas” is discussed as well as sacrificially self-help adaption in exotic places.