In this study, that you are about to enter a rapid super-aging society in Japan, it is one for the challenge of rapid increase elderly people living alone, how to research and development that can resolve. It is at present in the social structure of the current, for it is not able to adapt to these changes, a large burden's care depends on volunteers and family. Also think that in order to watch elderly only staff of care helper, is difficult, that it should be effective use actively the significant information communications technology in recent years. By building a combination of cloud services and wireless environment, and also that it developed a sensor network, arranged to house such skillfully, aims to provide a support system watch care reliable for their families of elderly people. But on the other hand, cases that do not accept the state by the network and services that lead to it and equipment, there is a problem of privacy of care receivers, was placed in a home, that are always being monitored is assumed. It needs the system of several cases considering like when it is caused malfunction of a device. When we research and development, we have been verified users and staffs of care homes by demonstration and interviews. It is repeated such verification, promote efforts to practical use in the future.