This purpose of this study is to explore the key factors that affect the international competitiveness of Taiwan’s small wind turbine industry. Porter's Diamond Model was adopted as the theoretical framework for constructing the impact measurement. The study consists basically three phases. In the first phase, secondary data were collected to understand the characteristics and current situation of the wind turbine industry in Taiwan for further constructing of preliminary influential factors. In the second phase, six experienced professionals were interviewed for the purpose of modifying and confirming the appropriateness of those key influential factors. In the last phase, another twenty professionals from government, companies, academic and research institutions were interviewed and their opinions were analyzed using analytic hierarchy process (AHP) for finding out the importance and priority of factors having significant impacts on the industry. Through the study, the following conclusive remarks were found and listed according to their priorities: (1) The small wind turbine firms should entry into the market of Mainland China; (2) The demonstrative wind farm should be built in Taiwan’s islands as soon as possible; (3) The government should simplify the application process of guaranteed electricity purchasing; (4) International and cross-strait collaborations in small wind turbine testing and certification should be carried out as soon as possible by the government; (5) The strategy of differentiation should be taken by firms.