Tang and Tse were off to a strong start against Indonesia’s Rehan Naufal Kusharjanto and Gloria Emanuelle Widjaja, winning the first game 21-17.
It was a nail-biting affair in game two, with Tang and Tse once down 9-13 before drawing level.
Both sides then exchanged leads before the SAR pair closed out the 45-minute match by scoring three consecutive points to win 21-19.
Their victory sets up a quarter-final showdown with Thailand’s fifth-seeded pair of Dechapol Puavaranukroh and Supissara Paewsampran in the quarter-final.
Fellow SAR athlete Angus Ng, on the other hand, crashed out of the men’s singles campaign after losing to China’s world number three Shi Yuqi in the last 16.
Shi was in control early on, winning the opening game 21-16, but Ng found his rhythm to take game two 21-18.
Leading 16-14 in the decider, the 31-year-old Hong Kong star ran out of gas and conceded seven consecutive points to bow out in one hour and seven minutes.