Abstract
We introduced augmentative and alternative communication (AAC) strategies to 6 persons with severe motor and intellectual disability in hospital home, to develop voluntary expression of their intention. These results were that their lives and communication behaviors varied, and AAC had many significances for their QOL. However in order to realize the significance, it was important to support the patients from the viewpoint of general and mutual system, solving the environmental problems of helper's knowledge or thought about AAC, but also to estimate each individual person's abilities. Especially in the hospital home, it was more important to make the system of team approach around the room helper accepting patient's needs.