This study aims to investigate the major themes and contents of studies on teaching English as an EFL in elementary schools in Korea since TEFLES (Teaching English as a Foreign Language in the Elementary School) was first introduced in elementary schools as a regular subject under the 7th National Curriculum in 1997. For the purpose of the study, a total of 218 research was examined in terms of the research methods, topics and main contents, and implications. The results of the study show that more than a half of the research was oriented toward quantitative approach. In addition, the main foci were the effects of certain tasks, pronunciation, dramatization, the use of a variety of multimedia materials on elementary school students" speaking skills. However, a large number of studies dealt with speaking skills in an integrated manner with other factors such as language skills, motivation, interests, and confidence. On the basis of the results, pedagogical implications on the teaching of speaking skills are suggested.