To analyze the traditional Chinese medicine (TCM)pathological factors of addiction. Methods:We applied the research results--qi-blood and body fluid state identification system in beta version--to the research on TCM pathological factors of addiction. The diagnosis standards of drug addicts conformed to the Standards in Chinese Classification and Diagnosis of Mental Disorders， CCMD-3.The Chinese medical pathological factors were collected by means of Syndrome Elements Authentication. Results:The public security group and judicial group have significant differences in Yin deficiency， blood deficiency， Yang deficiency， phlegm and damp (P<0.05)， and the differences of judicial group are much more obvious than those of public security group. Conclusion:Phlegm is the main pathological factors of drug addiction， and the Excess and Deficiency Syndrome is the symptomatology characteristics of drug addiction.