台灣已進入高齡社會，老年人口愈來愈多，由於大部分的中老年人都是健康和亞健康者，所以政府鼓勵他們參與志願服務，以善用其專業與經驗，成為社會重要的人力資源。高齡者參與志願服務，可以透過社會的互動和關懷，增加其人際關係，獲得自我成長、自我實現、社會肯定與精神快樂，有助於彰顯晚年的意義與價值。本研究旨在探討中高齡志工人格特質與幸福感之相關性，研究對象為南投縣中高齡志工，透過有效樣本209份問卷調查，獲得以下研究結果：（1）受試者社會人口變項在人格特質沒有顯著相關；（2）受試者經濟與健康狀況差異在幸福感有顯著差異；（3）受試者人格特質和幸福感具有顯著的正相關；（4）受試者人格特質對幸福感有預測力。本結果可提供規畫中老年人志願服務之機構與後續研究者參考。

Taiwan has entered the ageing society, and growing older adults who mostly are healthy are encouraged to join the volunteer service as the important human resources in the society based on their profession and experience. When elderly people participate in voluntary service, they can increase their interpersonal relationship through social interaction and care, gain self-growth, self-realization, social affirmation and spiritual happiness, which will help to demonstrate the meaning and value of old age. The purpose of this study was to explore the correlation between the personality traits and well-being of the middle-aged and elderly volunteers. 209 valid middle-aged and elderly volunteers in Nantou County were investigated by questionnaire survey. The results of the study were as follows: (1) The social demographic variables of the subjects were not significantly related to the personality traits. (2) The differences in the economic and health status of the subjects had significant differences in the well-being. (3) The personality traits of the test subjects were significantly positively correlated with well-being. (4) The personality traits of the subjects were predictive of happiness. This result can provide a reference for future planning of middle-aged and elderly volunteer service for related organizations and follow-up researchers.