Circular RNA (circRNA), an emerging non-coding RNA, is closely related to the processes of lipid deposition, inflammatory response, apoptosis, proliferation and repair in atherosclerosis (As), and affects the development of As. Traditional Chinese medicine (TCM) has an important academic value in the prevention and treatment of As, and its regulatory mechanism has not been comprehensively summarized. This paper reviewed the association of circRNA with lipid deposition, inflammatory response and macrophage in As, and summarized the research progress of the correlation between circRNA and atherosclerosis and the regulation of traditional Chinese medicine.