This paper analyzes the situation that peasant workers work in cities, create a residual value, but their basic living is not guaranteed, and discusses the social pay and conditions of peasant workers.

It occur to their employees loss of their necessary social security treatment,it needs to structure their social security frame which base on their working characteristic,and prior to research their more important aspects such as industrial injury insurance,medical insurance and endowment insurance.

Research on the Deinstitutionalization of Treatments on Juvenile Offenders;

The treatment measures of offenders in the community are the execution of punishment toward offenders in the community corrections and relevant measures.

The thesis mainly focuses on the changes of the Japanese correctional education for juvenile in modern times,with mainly focus on the evolution of the juvenile correctional facilities Reformatory and the law and the treatment which be related to Reformatory.