"Disease-syndromes-formulas-medicines" binding mode is benefit to reveal the scientific connotation of the compatibility and mechanism of classical prescriptions of traditional Chinese medicine (TCM). In this article, Zuojin Wan was used as a model prescription, with the etiology and pathogenesis of liver-fire invading stomach in TCM, and modern pathological and pharmacological interpretation, the compatibility, nature-flavour, channel tropism, the active substance and pharmacology of Zuojin Wan were explained, in order to reveal the compatibility, nature-flavour and channel tropism of Zuojin Wan, and to provide ideas for the development of modern compound prescription.