Ratchanok was born in Roi-Et province in the Northeast of Thailand, but moved to Yasothorn Province and grew up there until she was at the age of 4 years, moved again with her parents, her father Mr. Winutchai Intanon and Mrs. Kumpan Suvarsara her mother who worked at the Banthongyord sweets factory in Bangkhae district, Bangkok capital city, Thailand.
As a child, Ratchanok has ran around in the factory’s area where her parents worked for that it has the cooking furnaces installed. Then the owner has allowed her to play at the plant’s badminton filed because afraid of danger from the hot water and sugar melt in the Thai traditional sweet cooking furnaces. That was her first kick-off starting playing badminton so far.