本研究旨在檢驗襲產觀光中遊客的真實性知覺與懷舊情感間之關係，並進一步釐清參與解說於其關係的調節效果。研究對象以臺灣大溪老街、鹿港老街與新化老街的遊客進行問卷調查，共獲得有效問卷364份。本研究以結構方程模式進行分析。研究結果顯示，懷舊情感的形成確實需要真實性知覺的存在，當遊客的真實性知覺愈高，其懷舊情感的程度也愈高。此外，研究中也證實參與解說會調節真實性知覺與懷舊情感間之關係，亦即參與解說之遊客，真實性知覺對懷舊情感的正向關係高於未參與解說者。最後依據研究結果，提出管理意涵與後續研究建議。

The purpose of this study was to examine the relationship between authenticity and nostalgia emotion of tourists, as well as clarify the moderating effect of interpretation service in the relationship of authenticity and nostalgia emotion. 364 valid questionnaires were collected from visitors in history area of Tahsi, Lukang, and Sinhua. Structural equation modeling was used to estimate a model linking authenticity and nostalgia emotion. As expected, formation of nostalgia emotion actually needs authenticity. The results show that visitors having greater authenticity lead to higher nostalgia emotion. The findings further revealed that interpretation would moderate the relationship of authenticity on nostalgia emotion. The authenticity of visitors who participated in interpretation will evoke greater nostalgia emotion than who haven’t participated in interpretation. Finally, the results proposed implications of management and suggestions for further study.