This is an interventional research with care staffs in several traditional nursing homes for the elderly, in order to evaluate the environmental improvement and the process by applying the concept of the Professional Environmental Assessment Protocol (PEAP: Weisman et al. 1996). The progress and the achievement for creating better environment varied because of different engagement of practicing and managing care. Positive and negative factors of environmental improvement and the staff consciousness were clarified in each facility by several research methods, such as the questionnaire method to all staffs, behavioral mappings, regularly photographing records at fixed places, and the PEAP. As the results, the dominating organizational factors were categorized in three patterns for creating better care environment, 1) building common recognition of the goal among care staffs and director, 2) continuing the practicing of improvement, 3) challenging process for creating the small-scale environment.