She conducted research in the fields of fetal breathing, female pelvic diseases, gynecologic oncology and neonatal hemolytic disorders.

[6] Lin won the Walter A. Hawley scholarship (Chinese: 文海奖学金) to the PUMC as the best graduate in 1929,[7] which was considerable and might amount to the annual salary of an assistant resident.

[8] Lin became the first native female physician hired as an assistant resident in the Department of Obstetrics and Gynecology, PUMC hospital.

[9] Upon return to PUMC, Lin became the first native female to be appointed director of a hospital department of obstetrics and gynecology.

Since the Pacific War broke out, the hospital was closed by the Japanese military, Lin initiated personal practice at her residence, 10 Dongtangzi Hutong,[10] where she completed a total of 8,887 medical records.

She preferred putting her ear against her abdomen gently to using a stethoscope to catch the fetus's heart beating.

[14] On the seventh anniversary of Lin's death in 1990, China Post issued a commemorative stamp to honour her.

To some extent it might be attributed to the hospital authority used to believed that career and marriage are mutually exclusive for a young doctor.