The purpose of this study is to devise a valid and reliable instrument to measure the organization-public relationship. This study has three research steps. At first, the study tests extensive items collected from the literature review using exploratory factor analysis, and then the items are tested again with confirmatory factor analysis. Lastly, the study verifies the instrument through two surveys. Through these three steps, this study finalizes a valid and reliable four-dimension scale with sixteen items for measuring the organization-public relationship. The results demonstrate that the scale is valid for other kinds of samples.