The aim of this study is to develop a scale to measure Turkish reading, listening, speaking and writing self-efficacy of foreign students in Turkey. The sample group of this study consists of 412 foreign students studying in TOMER. At the first phase, four sets of items consisting of 200 items were prepared as a data collecting tool. Eliminating 90 of the items upon expert evaluations, a draft scale consisting of 110 items was applied to mentioned foreign students. The data obtained from the study were analysed by item analysis, exploratory and confirmatory factor analysis methods. At the end of the study, the self-efficacy scale of Turkish reading, writing, speaking and listening skills, which consists of 94 items and targets foreigners who learn Turkish as a foreign language, was found to be a reliable and valid scale.