The purpose of this article is to categorize Korean universities based on their internationalization strategies and to explore whether there are differences in internationalization performance by types. To achieve this purpose, 164 out of 181 four-year universities were analyzed with the data published by the center for Higher Educational Information Disclosure. This study classified the strategies for internationalization into the four categories according to the four types of the internal resources that the universities have - physical, financial, human, and organizational resources - and found that the strategies related to the human and organizational resources are the most common among the four categories of the strategies. In this study, the universities are also categorized into the four groups based on the two standards - the levels of the internal resources that each university has and the existence of the strategies pertinent to the resource types. It is found from analyses of one-way ANOVA and Kruskal-Wallis that the internationalization performance of the four groups are different . The result of the posteriori test indicates that the internal resources that universities hold have more impacts on the internationalization performance than the strategies for internationalization. It implies that securing the resources needed for internationalization should be a priority and universities need to develop the realistic strategies for internationalization considering their resources and features.