Sindhu, who became the toast of the country after becoming the first Indian women to win a silver at Rio Games, continued her rampaging run as she lifted the prestigious title after beating Sun 21-11 17-21 21-11 in the summit clash that lasted an hour and nine minutes.
World No. 11 Sindhu had come into the match with a 2-3 head-to-head record but then statistics counted little when she took the court at the Haixia Olympic Sports Center.
Sindhu becomes the second Indian to clinch China Open Super Series title. Saina Nehwal had clinched the China Open in 2014 beforefinishing runners-up last year.