The protection treatment system is different from the punishment and security treatment system，the former is mainly to provide education for juvenile delinquents to eliminate personal danger，promote their reintegration into the society. The state provides socialized assistance and education and necessary compulsory correction to juvenile delinquents in accordance with the law，which can prevent them from committing illegal and criminal acts. The construction of juvenile justice system in our country has long stayed on the exception level of adult justice. Juvenile justice system，which was born out of ordinary criminal justice system，faces many difficulties，including the provisions on legal protection and punishment are scattered，and the hierarchical punishment system lacks a unified judgment subject，judgment standards，as well as educational corrections and recidivism prevention supporting measures are not perfect. In order to better promote the reintegration of delinquent minors into society，it is necessary to enact laws on the protection and punishment of juvenile delinquents，fully activate special correction education measures，further improve the construction of special schools，enhance the professional level of the help and education team，and build information sharing platform for juvenile delinquents.