The purpose of this paper is to compare between Korean and Arabic in terms of phonology and seek effective ways of teaching Arabic for Korean students. Arabic as a Semitic language has 28 consonants and 3 basic vowels (each of which is short and long, and 2 diphthongs). Meanwhile, Korean has 19 consonants and 22 vowels. Due to the phonological differences between Korean and Arabic, it is somewhat difficult for Korean students to learn the correct Arabic consonant phonemes. In this paper, firstly, the consonants are grouped into two: one group common to both languages, and another unique to Arabic consonants. They are explained by phonological and phonetic methods to teach the correct pronunciation of Arabic consonants. Secondly, the Arabic vowels are explained through the examination of allophones in comparison with Korean. Thirdly, the syllables are explained by the structure, sorts, and characteristics. Lastly, it is suggested that professional training in phonology and phonetics fields be provided to instructors so that they can teach correct Arabic pronunciation.