The Dane, who did not drop a set throughout the tournament, hit 12 winners and won four out of eight break point chances to beat the unseeded Anastasija Sevastova in 87 minutes.
Australian Open champion Caroline Wozniacki defeated Latvia's Anastasija Sevastova 6-3 6-3 in the China Open final to claim her third title of the season.
The Dane, who did not drop a set throughout the tournament, hit 12 winners and won four out of eight break point chances to beat the unseeded Sevastova in 87 minutes.
It was Wozniacki's second title in Beijing, following her success in 2010 which had taken her to the top of the world ranking for the first time in her career.
After easing through the first set, Wozniacki raced to a 4-1 lead in the second. Sevastova, who has been managing a stomach muscle injury since the round of 16, broke back to give herself a chance to mount a comeback.
What a week!! Title #30 !! 🏆😃 pic.twitter.com/emegS75exR— Caroline Wozniacki (@CaroWozniacki) October 7, 2018
But Wozniacki saved three break points to take a 5-3 lead as Sevastova struggled for consistency. The world No 20 made 35 unforced errors in the match, including 21 in the second set, to allow Wozniacki to close out the victory.
Sevastova, who has not beaten Wozniacki in five attempts, said was pleased with her performance this week despite missing out on a second title of the season.
Wozniacki's victory is bound to boost her confidence ahead of this month's season-ending WTA Finals in Singapore, where the 28-year-old is the defending champion.