In 1965, Lai began her acting career.
Lai appeared in My Darling Wife, a 1965 drama film directed by Chan Wan.
Lai is known for a role in Old Master Q, a 1975 comedy film directed by Lee Tit, Chu Yat-Hung, King Weng.
Lai is Mrs. Mok in The Private Eyes, a 1976 comedy film directed by Michael Hui.
Lai appeared as Cheung Dai Ma in The Secret, a 1979 thriller drama and first feature film directed by Ann Hui.