On 2 March 2020, she reached her best singles ranking of world No. 536. She also has a career-high WTA doubles ranking of 566. Wu made her
WTA Tour debut at the
2014 Hong Kong Tennis Open, having received a wildcard with
Venise Chan in the doubles tournament, but lost to
Karolína and
Kristýna Plíšková in the first round. Playing for
Hong Kong Fed Cup team, Wu has a win–loss record of 20–16 in
Fed Cup competition and has played in 33 ties, being the second most Hong Kong player behind
Zhang Ling. ==ITF Circuit finals==