《元曲选·合同文字》宾白助词“的”共出现89次，根据用法分为四类：一是用于其它词或词组后，构成“的”字短语，单独作句子成分；二是作结构助词，相当于“的”“地”“得”；三是作动态助词，相当于“着”；四是作为代词或语气词“兀的”的构词音节，相当于音节助词。","Yuan Drama Selections .the contract text dialogues ’ auxiliary word “de”was used eighty-nine times.Ac-cording to usage of the auxiliary word “de”,it has been divided into four categories:Firstly,it is used behind words or phrases and is regarded as the component of sentence;Secondly,it is treated as structural auxiliary word and a-mounts to “de”,“di”and “dei”;Thirdly,it is deemed to dynamic auxiliary and is equivalent to “zhe”;Finally,it goes for the syllable of “wu de”,and is well-matched in Syllable word .By the analysis of data statistics ,we draw a conclusion that the auxiliary word “de”has the feature of transitivity ,this transitivity is manifested in mixture of the auxiliary word “de”.