The 5ft 1ins Thai hoisted 8kg more than silver medallist Sri Wahyuni Agustiani of Indonesia, while evergreen Japanese lifter Hiromi Miyake took bronze with a total of 188kg.
Sopita -- who hails from a family of boxers -- was in control throughout at the the 6,000-capacity Riocentro Pavilion 2, and went into the clean and jerk leading by seven kgs.