Abstract: Luo Zenan was an important and representative philosopher of the lixue school in the late Qing dynasty .H e not only produced a systematic elucidation of lixue, but also presented original views in various fields. From the orthodox standpoint of Cheng- Zhu s' lixue, he radically attacked Wang Yangming s' xinxue .H is arguments further enhanced the pre - eminent position of Cheng- Zhu s' lixue over Lu - Wang s' Xinxue .Unlike other traditional philosophers who limited themselves to moral issues, Luo Zenan was very concerned with statecraf,t and exerted a positive influence on the revival of Cheng- Zhu’s lixue in the la te Qing Dynasty.