The 25-year-old Pole saw off the 80th-ranked Chinese 6-2, 6-3 in their first-round match at Flushing Meadows.
Up next for the Polish player at the last Grand Slam tournament of the year is Argentina's Nadia Podoroska.
Świątek, a former US Open champion, is playing for her seventh Grand Slam singles title in New York.
The 2026 US Open runs until September 13.
(gs)
Source: IAR/PAP