To respond to the critical needs of the aging society in Taiwan, the relationship between the intelligent environment technology and recreational behavior of the elderly needs to be examined. The purpose of this study is to define the level of demand of the intelligent environment technology on the elderly. To understand the intelligent environment technology, the researchers reviewed literature, conducted interviews, and focus group discussions with the elderly. The study interviewed 430 participants selected from the elderly population in Taipei. One- to- one interviews were conducted by a trained interviewee using a structured questionnaire assessing personal characteristics and weekly leisure-time behavior. The results showed that the safety is the most important and enhancement of convenience is the least important demand for intelligent environment technology. A safe environment is the most demanding issue for the elderly to participate in recreational activities. Based on one-week leisure behavior, the study divided the participants into three groups: home recreational participants (HR), walking distance recreational participants (WDR), and not regular recreational participants (NRR). NRR participants scored significantly higher on the demands compared to other groups. In conclusion, to assist the elderly in recreational participation, intelligent environment technology should focus on the safety issue. Furthermore, intelligent environment technology needs to consider demands of the elderly, especially the NRR group.