OBJECTIVE:To analyze the application laws of clinical drugs by descriptive statistical method with the clinical literatures guided by "lung being connected with large intestine" used as the object.METHODS:Retrievepubliclypublishedclinicalliteratures about "lung being connected with large intestine"inrecent30years,establishthedatabaseofclinical literature,and study on the clinically drug-used lawsbydescriptivestatisticalanalyticmethod.RESULTS:The common high frequent drugs used for the lung-intestine related diseases were Gualou(Ructus Trichsanthis),Dahuang(Radix et Rhizoma),Kuxingren(Semen Armeniacae Amarum),Gancao(Radix Glycyrrhizae),Houpu(Cortex Magnoliae Officinalis),Zhishi(Fructus Aurantii Immaturus).For the different clinical syndrome types,in the commonly used drugs there were different characteristics,reflecting the principle of TCM syndrome differentiation treatment.CONCLUSION:The common high frequent drugs used for the lung-intestine related diseases are Gualou(Fructus Trichsanthis),Dahuang(Radix et Rhizoma),Kuxingren(Semen Armeniacae Amarum),Gancao(Radix Glycyrrhizae),Houpu(Cortex Magnoliae Officinalis),Zhishi(Fructus Aurantii Immaturus),which are commonly-used drugs for the lung-intestine related diseases,with differences for different syndrome types.