Professor Wang Xingkuan was a teacher of the famous TCM doctors heritage program, designated by the national famous TCM doctors heritage office. He’s also conferred the title of famous TCM doctor of Hunan, and a tenured professor of Hunan University of Chinese Medicine, the academic leader of department of internal medicine of the university’s first affiliated hospital, and enjoys special government allowances for outstanding experts. Professor Wang was engaged in clinical medicine for more than 50 years, especially good at treating difficult miscellaneous diseases and critical conditions. His treatment methods are innovative, therefore very effective. I had the honor of accompanying Professor Wang in clinic therefore benefiting from his clinical experience. In this paper, I summarized his clinical experience of constipation in order to benefit fellow doctors.