The homelessness in Nagoya, Japan is analyzed in this paper. The homelessness becomes a new housing problem in Japan.Most of homeless persons are single with no relation with their relatives and be forced to sleep on the streets. Voluntary groups give their hands to homeless persons. Japanese social welfare system can not save all of then. The reason is most of homeless persons are not eligible for the present systems. The present systems should b modified. Most of homeless persons belong to the class of day labores. So Japanese homelessness are not only a housing problem but also an employment problem.