The purpose of this study is to examine characteristics of English high vowels produced by South Kyungsang(SK) Korean (Busan dialect) speakers. The 10 SK Korean subjects who participated in this study are 5 male and 5 female university students. English target vowels for the current experiment, /i/-/ɪ/ and /u/-/ʊ/, were acoustically analyzed based on the formant frequencies of the vowels using Praat speech analysis program. In order to observe the relationship between SK Korean single vowels and standard Korean single vowels, the formant frequencies of 7 Korean single vowels /ㅏ/, /ㅔ/, /ㅣ/, /ㅗ/, /ㅜ/, /ㅡ/, /ㅓ/ were also measured using Praat. The collected data of the present study were also compared to the formant frequencies reported in previous studies. The results are as follows: First, SK Korean speakers have difficulty in distinguishing English tense and lax pairs regardless of gender. Second, there was a statistical difference in terms of the production of English high vowels, /i/, /ʊ/, /u/ between SK Korean speakers and standard Korean speakers. Third, in the case of Korean high vowels, the difference of F2 values between SK Korean speakers and standard Korean speakers is more than 100 Hz, especially in the Korean high back vowel /ㅜ/. These results show that each Korean dialect causes variance in terms of the production of English vowels and Korean vowels.