Arkhom Chenglai was born on June 11, 1970 in Tambon Na Tham Tai, Mueang Trang, Trang, Thailand. He used to play football, one day, he hid from the rain at a Muay Thai gym and saw his brother training which led him to it.
He fought with many famous fighters such as Nokweed Devy and earned purses going as high as 120,000 baht in the fight against Dutch fighter Ramon Dekkers at Lumpinee Stadium on November 11, 1990.
He fought in Muay Thai until no one was worthy of a bout against him. As a result, he switched to amateur boxing and won many awards highly recognized in the country. He then became a member of national team to compete in the 1992 Summer Olympics in Barcelona, Spain where he won a bronze medal.
He graduated from Wichienmatu School and earned a bachelor's degree from Chandrakasem Rajabhat College (currently Chandrakasem Rajabhat University).
After retirement, he opened a restaurant in his native Trang province.