When we examine the problems of involuntary admissions,CRPD（the convention on the rights of persons with disabilities-2006）must be considered within the context of the problems. The principle of the convention is based on enjoyment of legal capacity of persons with disabilities. So, it is necessary to recognize the relation and the contradiction between disease-disorder-disability spectrum and capacity-ability spectrum. The two spectrums have been developed after the Second World War with development of societies of the world. Author presents the recognition of involuntary admissions of Japan.So,Japanese psychiatry must select the road to community psychiatry to solve the problems.