A Study on the Integration of Language and Culture in Japanese Education - Focused on Japanese precedent researches and questionnaire survey analysis - This study aims to identify the efficient way to integrate language and culture in Japanese class for Korean college students. For this purpose, based on socio-cultural theory of Vygotsky, two opposite types were introduced as a way of integrating language and culture: “the internal integration” and “the external integration”. This study focused on the former between two types of integration; therefore, in terms of internal integration, this study found that there were limitations when learning target language in the target culture, through the review on Japanese studies. In addition, this study contains the result of a questionnaire answered by 57 Japanese language instructors from 22 countries, in 2012. They were asked about the culture gap they felt while talking with Japanese people, including its cause and specific examples. With the analysis of above results, the key conclusions this study arrived at are as follows: First, Japanese culture, or the target culture in language teaching, can be presented to language learners with a type the target culture has. Second, this presentation is more useful in the classroom where the teacher and the students share common mother language and culture, rather than in Japan where the native speaker teacher teaches the students from different countries.