本文研究主題聚焦於「文體論」，以古典曲論為第一手研究對象，旨在通過文獻史料的耙梳，分析其中「體」、「格」、「式」、「法」四字及以之複合構詞者。再從這些與「文體」相關之概念術語中，分析隱含的理論性涵義。主要從兩階段進行分析：其一，提舉出古典曲論中之「文體」相關概念術語，並探究其構詞模式及進行分類；其二，就分類所得進行歸納，並提舉出其隱含其中之「文體論」意識。通過分析研究後，可以將「體」、「格」、「式」、「法」相關內涵區分出「體製形式」與「藝術形相」兩類。在「體製形式」義中，可以歸納出「音律體製」、「曲唱體製」、「結構體製」、「章法體製」等四類；藝術形相義中，可以歸納出「體貌義」、「形式義」等兩類。

This study focuses on stylistics, taking classical theory of drama as the primary object, and analyzes four words: Ti, Ge, Fa and Shi and the derived compound word building, after reviewing the relevant literature. Furthermore, based on the conceptual terms related to the stylistics, the implied theoretical meanings are analyzed. Two phases are divided: (1) to specify relevant conceptual terms used in the stylistics of the classical theory of drama, and to explore as well as classify its models of word building; (2) to generalize the implied ideology of stylistics. After the analysis, the related connotations of the four words are divided according to system forms and art history. The four categories of the system forms include temperament, singing, structure and presentation, and disposition and formation in art history.