Swiatek, aiming to win her third trophy in Paris in five years, showed no weaknesses as she cruised into the fourth round.
She has now dropped just eight games in her three matches in Paris, while winning four of the six sets she has played to love.
"For sure, I am happy. It was a very strong performance from me and I was happy I was disciplined and took care of everything," Swiatek said.
"Every point is important for me and at the highest level every point matters," the world number one added. "You always have to be kind of disciplined.
"I am going to use that skill later when I have tight matches."
She wasted little time to show who was in charge, breaking the Chinese world number 80 three times to seal the first set in 28 minutes.
Wang's strong forehand was supposed to be a major weapon but instead, it let her down, with the Chinese piling up a dozen unforced errors en route to the first of two bagels.
Swiatek, who had also managed the double bagel feat in Rome last month, refused to be drawn into Wang's power rallies and instead made her opponent run.
She completed her memorable feat on her first match point, ending Wang's ordeal after 51 minutes.
