[3] Tong made her debut in the Hong Kong television series C'est La Vie, Mon Chéri in 2008, and gained attention for her beautiful looks.

[6][7][8] Throughout her career, Tong has portrayed various roles in hit dramas My Economical Man (2012), Weaning (2013), Sword Family Woman (2014) and Obstetrician (2014); and was named the "Ratings Queen" by the Chinese media.

[13][14] In 2015, Tong starred in the period drama Ordinary World (2015), based on the Mao Dun Literature Prize novel of the same name by Lu Yao.

In Great Expectations, she played the role of a wealthy lady who disguises as a man to infiltrate the underworld to seek revenge for her dead father.

[19] The same year, Tong won acclaim and numerous accolades for her performance in the romance comedy film How Long Will I Love U.