In China, Guo became widely recognised for the gowns and costume dresses she designed for the female hosts of the CCTV Spring Festival Gala; the Lunar New Year's Eve programme is the most-viewed television event in the country. In 2008, she designed an elegant shoulder-baring dress for Zhang Ziyi to wear at the torch lighting ceremony in Athens, in the lead-up to the Beijing Olympics. The experienced couturier didn't go with the actress's original plan for a qipao, but made a piece that conveys traditional Chinese elements through a modern silhouette and intricate cutting.

In 2016, Guo became the first Chinese designer invited to join the Chambre Syndicale de la Haute Couture, the prestigious French regulatory body, which also allowed Guo to make her debut show that year at Paris Haute Couture Fashion Week.