隨著城市環境空間與時間不斷轉變與發展，在環境中到處可見公共藝術的設置，但國內有關公共藝術之研究較少針對使用者與公共藝術互動行為之相關研究。探討行為的理論近年來以計畫行為理論最常被用來解釋人類行為，但對於與公共藝術品的互動行為則少有相關實證研究，同時科技接受模式雖為解釋科技產品的使用行為，但是否通用於公共藝術品，則可以進一步探討。故本研究將透過理論（計畫行為理論、科技接受模式、支應性理論等）的推衍，探討使用者與公共藝術品之間互動關係，建構一個與公共藝術品互動的行為模式。而研究之實證基地以台南市的南部科學工業園區為研究範圍，調查對象為與公共藝術品有所互動行為的使用者，取樣方法則採立意抽樣方式進行，共獲得有效樣本數255份。藉由SEM（結構方程式）分析之結果，在本研究所建構之整合模式中，得出以下結論：1.知覺有用性與知覺易用性對公共藝術態度具有顯著正向影響。2.公共藝術態度對互動行為傾向具有顯著正向影響。根據實證研究之結果，可作為日後公共藝術品的設置、管理維護與設計規劃上之參考依據。

The urban environmental space has been changing and developing following the advancement of times, thereby prompting the common installation of public artworks everywhere in the living environment. Most domestic researches on public art are concerned with people's cognition, acceptance extent and actual interactive behaviors on public artworks, but only a few relevant studies have been done on affordance theory, interactive behavioral intentions and other factors on public artworks. In recent years, the use of planned behavior theory has been widely used to explore and explain human behaviors, but it does not have relevant empirical study on interactive behaviors on public artworks. Although the technology acceptance model is used to explain the technological products, whether or not it can be generally implied in public artworks is worth further exploration. In this study, the interactive relationships between users and public artworks were deduced through the exploration of planned behavior theory, technology acceptance model, and affordance theory to construct an interactive behavior model on public artworks. So, Southern Taiwan Science Park in Tainan City was chosen as an empirical research base on the research scope, and user interactive behaviors on public artworks were selected as the participants. A purposive sampling method was adopted for the study, and 255 valid copies of questionnaires were collected. Based on the analytical results of Structural Equation Modeling (SEM), conclusions made from the integrated model constructed in this study are shown as follows, (1) The perceived usefulness and perceived ease of use have a significant positive impact on public art attitudes. (2) The public art attitudes have a significant positive impact on interactive behavioral intentions. However, the empirical research results can be used as a reference basis for relevant personnel while installing, conducting management maintenance and design planning of public artworks in the future.