由於低出生率與平均壽命延長，40~64 歲中年人對在地老化的需求意願成為重要議題。因此，本研究目的為整合計畫行為理論及健康信念模型，探討中年人對在地樂活老化的意願及其前因。本研究採問卷調查法，以40~64歲中年人為研究對象，回收有效樣本223 份，回收率89.2%，並以結構方程模式進行資料分析。研究結果顯示態度(β=0.289; p<0.01)、自我效能(β=0.117; p<0.05)、知覺罹患性(β=-0.095; p<0.05)、知覺利益(β=0.236; p<0.01)、知覺障礙(β=0.236; p<0.01)以及行動線索(β=0.186; p<0.05)對在地老化行為意圖達顯著影響，其可解釋變異量(R2)達57%。因此，本研究結果提供有用的見解，不僅可幫助內政部選擇適當的促進策略，而且還可讓長期照護管理者和相關政府單位發展適合的管理策略以更能吸引中年人採用在地老化的意圖。

Due to falling birth rates and a longer average life expectancy, the demand intention of aging in place among middle-aged (40-64) people is an important issue. Therefore, the theory of planned behavior and health belief model were integrated for applied in the present study to explain middle-aged people’ behavior intentions and antecedents to adopt LOHAS aging in place. A field survey was conducted in Taiwan to collect data from citizens between the ages of 40 and 64. A structural equation model was used to examine the data. The resulting 223 valid questionnaires constituted a response rate of 89.2%. The research results indicate that attitude (β=0.289; p<0.01), self-efficacy(β=0.117; p<0.05), perceived susceptibility(β=-0.095; p<0.05), perceived benefit(β=0.236; p<0.01), perceived barriers(β=-0.122; p<0.05), and cues to action(β=0.186; p<0.05) have significant influence on behavior intention while explaining 57% of the total variance in behavior intention. Thus, the results of this study provide useful insights that can not only help Ministry of the Interior choose an appropriate promotion strategy but also enables long-term managers and related government agencies to develop and appropriate their own administrative strategies for the future to attract middle-aged people’ more intentions to adopt aging in place.