Objective,2,To explore the traditional Chinese medicine (TCM) clinical experience of Professor Zhang Shengsheng in the treatment of ulcerative colitis (UC) in the gastroenterology department and analyze his medication regularity and clinical strategies.,Methods:,2,This study collected the Data of97 UC patients treated by Professor Zhang in the outpatient clinic, with 289 visits in total. The data were analyzed and processed by Integrated Medical Record Data Mining System cobuiltby this research team and Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences.,Results:,2,Data analysis revealed that the core prescriptions formulated by Professor Zhang in the treatment of UC contained Astragali Radix Praeparata cum Melle, fried Atractylodis Macrocephalae Rhizoma, Coicis Semen, Coptidis Rhizoma, Aucklandiae Radix, Lablab Semen Album, Notoginseng Radix et Rhizoma powder, and processed Sanguisorbae Radix. The commonly used drug combinations were: 1) fried Atractylodis Macrocephalae Rhizoma-Astragali Radix Praeparata cum Melle-processed Sanguisorbae Radix, 2) Coicis Semen-Lablab Semen Album-Dioscoreae Rhizoma, 3) Scutellariae Radix-Coptidis Rhizoma-Aucklandiae Radix-Paeoniae Radix Alba, 4) Corydalis Rhizoma-Agrimoniae Herba-Notoginseng Radix et Rhizoma powder, 5) Angelicae Sinensis Radix-CyperiRhizoma, and 6) Saposhni-koviae Radix-Puerariae Lobatae Radix. Themodification principles of prescriptions are listed below. 1) Arecae Semen, Aucklandiae Radix, and Massa Medicata Fermentata were added in the contextof abdominal distension accompanied by borborygmus. 2) Corydalis Rhizoma, processed Sanguisorbae Radix, and Agrimoniae Herba were added in the context of abdominal pain accompanied by purulent and bloody stool. 3) Coptidis Rhizoma, Catechu, and Notoginseng Radix et Rhizoma powder were added in the context of tenesmus. 4) Zingiberis Rhizoma Praeparatum and Cinnamomi Cortex were added in the context of aversion to cold. 5) Coptidis Rhizoma and Forsythiae Fructus were added in the context of bitter taste in mouth.,Conclusion:,2,The present study analyzed the symptoms and syndrome rules of UC by the Integrated Medical Record Data Mining System and summarized the TCM clinical strategies and ideas of Professor Zhang.