Korea Petroglyphs Research Association has been explored petroglyph sites in Tamgaly and Kulzhabasy in Kazakhstan and the area around Lake Issyk-Kul in Kyrgyzstan, and found the following results : First, the petroglyph sites of Tamgaly, Kulzhabasy, Chopon-Alta, and Ornok consists commonly of cairns, dwellings place, stone walls, stone fences, and altars. Second, the menhir erected near the cairns at the sites of Ornok and Kulzhabasy not only symbolized the dead, but also served as an altar as a ritual space. Third, petroglyphs in Central Asia are distributed in deserts, desert-steppes, and mountainous areas. Fourth, Bronze Age petroglyphs in Central Asia during the Bronze Age(4000∼1000 B.C.) expressed the Aryan nomadic culture of the Indo-Iranians and their mythology. Fifth, the deer symbolizes the “Sun,” “Life and Death,” “World Tree,” “Tribal Tree,” and “Tree of Life,” and geometric patterns such as dots, straight lines, and zigzag patterns are Shamanism, and the magical meaning of “blessing”. Sixth, the distribution range of the sun-headed face patten petroglyphs is found in Spain, Italy, Central Asia, and India, and tells the story of the migration process of Indo-Europians and Indo-Iranians with sun beliefs. Lastly, petroglyphs similar to Central Asia and Korea peninsula include “human figure with exaggerated hands and toes”, “person praying with hands together”, “footprints”, “footprints of similar animals”, “figure riding a horse”, “chariot", and “circle pattern”. If the relationship between Central Asian and Korean petroglyphs is specifically identified, the origins of Korea's prehistoric petroglyphs and northern nomadic culture, such as cairns will be revealed.