Ambulatory medical care has undergone more than 20 years of development in China， gradually improving into a medical model that provides diagnosis and treatment services throughout the 24-hour hospitalization process. In the past decade， under the guidance of relevant national policies， the development scale and speed of ambulatory medical care have further expanded， providing more patients with efficient and low-cost diagnostic and treatment services， and playing a leverage role in the high-quality development of public hospitals. However， the development of ambulatory medical care is also facing challenges brought about by various factors such as the support of medical insurance policies， performance evaluation， and homogeneous development. Under the new situation and concepts of promoting the high-quality development of public hospitals and improving the medical service experience， the ambulatory medical service model has played a greater role in medical value. However， how to promote the stable and long-term development of ambulatory medical care is a valuable topic for discussion. The article aims to provide ideas for the further development of ambulatory medical care in the future by reviewing the development process and overview of ambulatory medical care in China.