This paper is about teaching Korean in local secondary schools in Thailand, where Korean language has been taught as a foreign language since 2007 according to the 'Korean Language Teachers Dispatch Program in Local Secondary Schools in Thailand’, which was conducted by the Ministry of Education, Science, and Technology in Korea in 2011. The aim of this study is to determine the status of teaching Korean in secondary schools in Thailand from 2007 to March 2012 and suggests, based on the results, the future subjects to be offered in order to expand the teaching of Korean to secondary schools in Thailand and progress safely with this program. To do this, the following are fully investigated: the background of Korean teaching that began in secondary schools in Thailand, the characteristics and kinds of educational institutions, educational contents and environments and so on. This paper suggests the future subjects to be offered to enhance the teaching of Korean in secondary schools in Thailand through this program, focusing on developing curriculum and textbooks. It also proposes how to give students learning motivation, developing a locally adapted teaching methodology, and training Korean language teachers for overseas Korean education. This study is the first paper discussing the teaching of Korean in secondary schools in Thailand, and it characterizes the activities of professional Korean language teachers dispatched to overseas public schools by the Ministry of Education, Science, and Technology in Korea. The results of this study will contribute to extending the teaching of Korean in Thailand and will offer suggestions for an appropriate curriculum. (Cyber Hankuk University of Foreign Studies)