成语的注音和拼写历来引起很大争议。《现代汉语词典》作为规范语文词典 ,在成语注音方面有自己的特色。它强调成语按词分写 ,并且很注意成语内部成分的文言特点。本文利用计量手段 ,对《现代汉语词典》成语注音的按词分写情况进行定量分析 ,凸现特色 ,找出不足 ,促使《现代汉语词典》成语注音能更加完善。 Phonetic transcription and spelling of idioms have always caused much controversy. As a standard Chinese dictionary, Modern Chinese Dictionary has its own characteristics in idioms. It emphasizes that idioms are written by words, and pays close attention to the classical features of the internal components of idioms. In this paper, we use quantitative methods to quantitatively analyze the distribution of the idioms of modern Chinese dictionaries, highlight the features and find the shortcomings, and make the modern Chinese dictionaries more perfect.