Medicine and law are two ancient disciplines in the world. Since the birth of universities, they have been an important part of western university education. Medical education and legal education have a lot in common both are professional education, both are designed to prepare professional workers. This is particularly true in the US. Both medical and law schools in the United States are post-undergraduate professional education, aiming to cultivate qualified lawyers and physicians. Therefore, they are highly career-oriented and attach great importance to cultivating students’ professional skills and practical ability. This is especially true of medical education. A four-year medical school in the United States, the first two years to learn basic medical knowledge, the second two years to contact patients, clinical learning, passing the exam after graduation, but also to participate in a year of residency training, to become a licensed physician. The three-year law school also focuses on practical teaching. It not only cultivates students’ analytical skills and legal thinking through the Case method of Socratic dialogue, but also has a moot court to familiarize students with trial procedures and defense strategies. Legal clinic education is a great innovation that American law schools learn from medical schools, which reflects the commonness between legal education and medical education, and also shows that the reform of legal education can learn from external resources like medical education. In American history, the success of legal education is inspired and influenced by the reform of medical education to a great extent.