Based on his understanding of the posthumous works of Middle Wittgenstein,Li Guoshan argued that his metaphilosophy is"therapeutic",encompassing both diagnosis and treatment.However,from the perspective of continuity,examining the two"aspects"of Wittgenstein's Middle discussion on the nature of philosophy reveals substantial continuity between his early and middle metaphilosophical views.In his early period,Wittgenstein believed that the main content of philosophical research was the examination of the nature of propositions.In his middle period,he still considered the core of philosophical research to be the examination of the nature of propositions,although his methods and perspectives had shifted.He adopted grammatical research as a method and focused on examining the various uses of propositions.Therefore,the metaphilosophy of Middle Wittgenstein is not"therapeutic".Li Guoshan's interpretation of Wittgenstein's Middle metaphilosophy captures only one"aspect"of his middle philosophy and is partially influenced by the New Wittgenstein School.In fact,philosophical research as grammatical research is the foundation of Wittgenstein's middle metaphilosophy.