The present researcher tried to find out the origin of Korean language. And the researcher tried to know the similar aspect between Korean language and Persian language (Kim and Park, 2022). The methods are very simple. The present researcher selected tens of Persian words randomly, and he observed the similarity between Persian language and Korean language. And the researcher used a Persian-French dictionary (Bau, 2008). Next is the result of the study. The number, Persian word, Korean word and its meaning were written as follows. <number Persian word (its meaning) Korean word (its meaning)> 0023 Qrut (dried and solid cheese) Quruk-quruk-quruk (voice of flowing liquid) 0024 Forsat (circumstance, occasion) Abbulsa! (expression at the sudden occasion) 0025 Aksariat (majority) Aksseora-deul! (All of you, cry on the loud voice!) 0026 Bagdad (the city of ‘Bagdad’) Baggad-deul (the outsider, the person living outside) 0027 Faransa (France on Arab language) Bbareun-saram (the people who can run fast) 0028 Ambar (dung of animal, feces) An-beoryeo (We will not discard it, we will use it!) 0029 Gol (flower) Ggot (flower) 0030 Musa (Moise, the leader of Israel) Museoweo (I have fear for something or for somebody) 0031 Zat (the essentially necessary thing) Sat or Sataguni (groin of the body) 0032 Jala (brilliant, encaustic) Jareureureu (brilliant, oily) 0033 Bar omadan (spring or flush) Baro-oma (I will come soon!) 0034 Kalema (parole or word) Geoleumma (toddle, baby step). The distance of the two countries – Persian and Korea- is very long, and the time interval between Persia and Korea is also very long. It is assumed therefore that the meaning was changed.