Qi

deficiency syndrome is one of the most common syndromes in clinical practice of traditional Chinese medicine （TCM） and has high clinical recognition value. However， its diagnostic process faces numerous challenges， which seriously affect the standardization， consistency， and reproducibility of syndrome diagnosis. Following the standard development procedures of the China Association of Chinese Medicine， and on the basis of standardized definitions of diagnostic terminology， this consensus adopts a combined diagnostic-criteria presentation approach. Through the identification of combinations of primary and secondary symptoms， and by comprehensively applying methods such as systematic literature reviews， the Delphi technique， cross-sectional clinical studies， and multiple statistical analyses， together with expert consensus， the

Diagnostic Scale for Qi Deficiency Syndrome

has been formulated. This guideline aims to provide standardized guidance for the clinical diagnosis， treatment， and scientific research of

qi

deficiency syndrome.