In 1941, she was nominated as an assistant professor in Domestic Studies at Sookmyung Women's University, and she started teaching Nutritional Science.
She measured ingredients for Korean royal court cuisine, and organized food preparation systematically.
She exhibited and gave courses on Korean royal court cuisine several times in America, Japan, France, the Philippines, Taiwan and so on.
Hwang Hye-seong wrote Ijogungjeongyoritonggo joint work with her teacher, Han Hie-sun, at the first onset.
She left a lot of theis and 10 Korean royal court cuisine and traditional food specialty publications.