The researches on the imperativeness and the imperative sentences of modern Chinese in recent thirty years can be summarized as two schools and three fields.Specifically,the two schools are traditional study and the study on speech act theory;on the other hand,the three fields refer to the attributes of the imperative sentences and the research on mood,the functions of the imperative sentences and typology of imperative structure,as well as the study on the application and acquisition of the imperative sentences.About these researches,it is urgent to clarify the basic problems,to breakthrough the traditional methods,specifically,not only paying attention to the form and the structure of language,but also considering the influence of context to meaning and function.In a word,this study needs to combine the static study and the dynamic study together.