The purpose of this research was to establish a conceptual model of volunteer interpreters’ satisfaction in Taiwan. The objectives were: (1) to understand Taiwanese volunteer interpreters’ activity involvement, place attachment, and personal satisfaction and (2) to propose a hypothetical structural model representing the association between activity involvement, place attachment, and interpreters’ satisfaction. A total of 378 surveys were collected from volunteer interpreters at six Taiwan national parks and the Taipei Zoo. Based on the findings, research targets’ activity involvement was high and place attachment was moderate. Their satisfaction, however, was high. Furthermore, the results showed that the volunteer interpreters’ activity involvement and place attachment positively and significantly influenced satisfaction; their activity involvement also positively influenced place attachment. Based on the results, researchers proposed suggestions for agency managers who use volunteers, among them promoting interpreters’ activity involvement and place attachment in order to enhance volunteer satisfaction.