Ergonomics is an important factor in Environmental Design. But still no research is trying to focusing on the reacted-relations among user, behavior and space, analyzing the behavior setting for the dementia elderly in the viewpoint of different body postures, to find the characteristics of behavior and differences of spatial needs for the dementia elderly in nursing home.

Based on this background, this research will occur an observation by a survey method of behavior-mapping the elderly with dementia,. There are three main purposes in this study: 1) to tracing the characteristics and needs for the dementia elderly of different body postures when carrying out daily living behaviors (dining, recreation, physiological excretion,) in nursing home; 2) to compare the staying place, time, and behaviors among the dementia elderly of three different body postures; 3) to analyze the moving pattern and characteristic of the dementia elderly among different body postures in Nursing Home.

Remarkable findings are as follows: (1) On average, of ten hours of survey time, the elderly spent 60% to stay in bedroom area, 30% in public multi-purposes area and 10% at corridor; (2) The should be divided into “bed center”, “bedroom area center”, “ multi-purposes area center” and “bedroom and multi-purposes area doubled centers” four types; (3) The moving patterns of the dementia elderly could classified into “actively moving”, “wandering” and “passively moving” three types.