The research article aims to study to the problem of drug addicts, want to see the legal problems to develop a system for the treatment of drug addiction among adolescents in the problem of Thailand. Study, review and analyze various legal problems In Thailand and the practice of drug addiction treatment among adolescents. Compare the relevant laws of Thailand and other countries. Following the principles of the United Nations on the treatment of drug addiction among adolescents. Study and analyze support mechanisms for quality development. The effectiveness of the treatment policy for adolescents using drugs inappropriate practice and using the results of the study as suggestions for improving the laws and procedures related to the practice of drug addiction in adolescents. The research team has studied the laws and policies of Thailand. Interesting foreign law and policy And conduct interviews Small group meeting Study visit public health agencies in each of the four sectors and the central agencies. Making it known to the problems and obstacles of the operation It's not just a legal barrier But also obstacles in practice When the study was conducted, it was found that Problems with the development of that law The main problem lies in defining the offense of substance abuse as a crime. Cause no matter how child Youth or adolescence Must enter the criminal justice system inevitably With the introduction of the criminal justice system, having a lifelong criminal record, especially teenagers who use the same law as adults, are damaging to adulthood, are entering adulthood. This causes concern for them about their future stigmatization. Besides, when considering the criminal theory of drug offenses, especially the drug base, It is a criminal act that should not be punished. Also, when conducting a study visit of Surat Thani Province, there was an interest that was consistent with not bringing drug therapists into criminal proceedings and treatment guidelines with community participation of the Office of Drug Administration. Addiction and Crime of the United Nations (UNODC) through drug camps in adolescents. Other agencies operate under the law on drug abuse rehabilitation. In each area, there were insufficient operational, personnel and site problems resulting in the inability to perform the rehabilitation work for drug patients as a result of establishing the provisions of the law to enter the rehabilitation process that still exists. Need a screening process or a rehabilitation system that has a variety of sectors to work together Also, rehabilitation was forced to recover from illnesses resulting from drug abuse. Otherwise, the rehabilitation will be deemed unsuccessful, and the criminal proceedings must be continued. The researchers saw that several dimensions of adolescent drug administration law have to be developed, such as the criminal determination dimension. The dimension of integrated patient management services, which must arise from multi-sectoral cooperation, is not the only function of one agency, it may have separate functions, but integrate missions. The patient data management dimension does not lead to stigmatization, especially criminal history for adolescent patients