To analyze and summarize the clinical implicit law of chronic cough therapy developed by a famous TCM veteran doctor Chao Enxiang. Methods: The clinical records of chronic cough patients treated by Professor Chao Enxiang were collected through famous TCM clinical diagnosis information collection system. The data mining was conducted by the computerized online platform of TCM Inheritance Support System(TCMISS),for the deduction of his dialectical thinking and herbal prescription experience. Results: With his theory of wind regulation, Professor Chao Enxiang has achieved an effective rate of 79.9%.The self-made Suhuangzhike Decoction was used as a core therapy for treatment of patients with chronic cough. Conclusion: Chao Enxiang is a clinical expert who treated chronic cough with subtle ways. The Suhuangzhike Decoction which is based on the theory of wind regulation is effective to cure chronic cough, and is worthy of clinical application.