With the rapid development of modern information technologies such as database，cloud computing，and mobile web，artificial intelligence has been implemented extensively in the field of Smart Health Care. Concepts such as “Big health”，“Health status over the life cycle”，“Big data in healthcare” which are advocated globally not only have raised people’s health to a strategic position，but also boosted the growth of medical artificial intelligence. While it would bring revolutionary changes in medical service，additional ethical dilemmas would appear concurringly；however，Smart Health Care has yet to develop thoroughly in China. This study，by analyzing，studying，and comparing related legal regulations of both China and nations outside of China，will attempt to address the apparent ethical and legal problems brought forth by the implementation of medical artificial intelligence. On the issues of medical ethics，the study will collate and analyze the potential risks and dangers involving the application of medical artificial intelligence；on the issues of regulation，it will thoroughly analyze the potential challenges in regulations and managements of medical artificial intelligences and provide solutions to them，improving the policies related to medical artificial intelligence in China in order to promote further artificial intelligence policies in the medical industry. The ultimate goal is to benefit the humankind via scientific and technological innovations and medical artificial intelligence.