Fan Daidi is a Chinese businesswoman, the self-made billionaire Co-founder of Giant Biogene Holding. She served as the company's Chief Science Officer until 2023. She holds the distinction of being the first woman with a PhD degree majoring in her subject in modern Chinese history.

Fan invented and patented recombine collagen in 2000 and set up Giant Biogene with her husband, Yan Jianya, in the same year. She is also the Vice President of Northwest University in China and Dean of the university's Institute of Biomedical Research.

• Core Company: Giant Biogene Holding (HKSE: 2367), a supplier of collagen and skincare products.
• Scientific Achievement: Invented and patented recombine collagen in 2000.
• Academic Role: Vice President of Northwest University and Dean of the Institute of Biomedical Research.

Fan Daidi's career is a testament to the commercial power of scientific innovation. After studying abroad at MIT as a senior visiting scholar, she returned to Northwest University to teach and research. Her invention of recombine collagen became the basis for Giant Biogene's popular products, including high-end facial masks.

The company listed on the Hong Kong Stock Exchange in 2022. Her wealth is derived from her stake in Giant Biogene and a stake in the beauty services provider Beauty Farm Medical and Health Industry (HKSE: 2373), which also went public in 2023.