There has been substantial research in the area of innovation, which is widely regarded as a powerful weapon to create competitive advantage. One important reason of the substantial research in innovation is the presence of valid and reliable measures of key innovation characteristics, such as radical, incremental, or disruptiveness innovation. Re-innovation, an extension of innovation, is renowned for its potential in creating competitive advantage with reduced cost and time implications. Unfortunately, very little research in re-innovation has been conducted, possibly because to date it still lacks a psychometrically valid measure. There is also a lack of research on convergent and discriminant validities of the re-innovation construct, resulting in the impossibility to discriminate re-innovation characteristics from radical or incremental innovation characteristics. The purpose of this paper is to develop a valid and reliable scale for measuring the construct of re-innovation. To test its reliability and discriminant and convergent validities, we used data collected from 294 general managers of SBUs in 89 electronics-related companies in Taiwan and performed a series of analyses. The reliability measures, exploratory factor analyses, confirmatory factor analyses, and convergent and discriminant validity tests strongly support our scale. In addition, nomological validity is demonstrated. Hence, this study distinguishes the re-innovation from radical and incremental innovation constructs. Finally, discussion, limitations, and future research are presented.