Introduction: Asthma is a chronic respiratory condition that results in the inflammation and narrowing of airways. The lack of curative therapies for asthma has led to an increased use of traditional Chinese medicine (TCM) worldwide. This review aims to evaluate the mechanism of action (MOA) of TCM for used for treatment of asthma. Methods: A systematic review was conducted in Medline®, Embase®, CENTRAL®, China National Knowledge Infrastructure (CNKI®) and WanFang® for TCM used for asth...