Jayley Woo first appeared onscreen via a local drama production called Jump!. She was originally known as a blogger. She was also one of the finalists for a beauty contest; The New Paper New Face. She attained numerous offers to be a poster girl for various brands after qualifying as the top 20 in that beauty contest.
Apart from competing in beauty pageants, she was also spotted as a contestant who sings and dances in various competitions like Kpop star Hunt and Cube Entertainment Auditions. She succeeded in being one of the top 50 finalists for Starhunt competition whereas top 20 for the latter.
Recently, she was spotted acting in a several Mandarin-languaged local drama shows like 98 Degrees, C.L.I.F 2 and The Dreammakers. She also dabbled in the hosting arena via a show called Style:Check In.