**Main Education and Work Experience:** Graduated with a bachelor's degree from the Department of Medicine, Sun Yat-sen University of Medical Sciences in 1993. Subsequently engaged in clinical work in the Department of Pediatrics at the First Affiliated Hospital of Sun Yat-sen University. Began clinical and research work in pediatric endocrinology in 1999. Obtained a doctorate in pediatric endocrinology in 2004. In 2007, went to the Department of Endocrinology and Metabolism, National Center for Child Health and Development in Tokyo, Japan, for further training and conducted research on the etiology of childhood obesity and genes related to precocious puberty. Completed the "Henning Anderson Educational Program in Paediatric Endocrinology" short-term training course in December 2019. **Social Appointments:** Member, Endocrinology, Genetics and Metabolism Group, Pediatrics Branch, Chinese Medical Association Standing Committee Member and Head of Social Work Group, Adolescent Health and Medicine Professional Committee, Chinese Medical Doctor Association Deputy Head, South China Collaboration Group, Endocrinology, Genetics and Metabolism Group, Pediatrics Branch, Chinese Medical Association Member, Endocrinology Group, Guangdong Pediatric Society (13th and 14th terms) Corresponding Editorial Board Member, *Chinese Journal of Pediatrics* and *Chinese Journal of Endocrinology and Metabolism*; Editorial Board Member, *Chinese Journal of Practical Pediatrics* **Publications:** Published multiple academic papers as first author/corresponding author in domestic core journals and international SCI-indexed journals. Presented papers at international and domestic conferences, including the Asia Pacific and European Society for Paediatric Endocrinology meetings. A paper on the diagnosis of childhood growth hormone deficiency won an award for excellence at the 2nd Asia Pacific Congress of Pediatric Endocrinology. **Representative Papers:** 1. Li YH, Ma HM, Chen HS, et al. A longitudinal study on the pattern of pubertal development in Guangzhou girls. *Chinese Journal of Pediatrics*, 2009; 47(6):410-415. 2. Li YH, Su Z, Ma HM, et al. Clinical characteristics of germ cell tumors with precocious puberty in children and the value of serum and cerebrospinal fluid β-hCG measurement for tumor localization diagnosis. *Chinese Journal of Pediatrics*, 2010, 48(10):771-774. 3. Li YH, Zhu SY, Ma HM, et al. Evaluation of the efficacy of gonadotropin-releasing hormone analog combined with stanozolol in improving adult height in girls with idiopathic central precocious puberty and advanced bone age. *Chinese Journal of Pediatrics*, 2013; 51(11): 807-812. 4. Yan-hong Li, Min-lian Du, Hua-mei Ma, et al. Effect of gonadotropin-releasing hormone analog combined with stanazolol on final height in girls with idiopathic central precocious puberty and apparent decrease of linear growth. *Hormone Research in Paediatrics*, 2012, 78(suppl 1):102-103. 5. Yan-Hong Li, Min-Lian Du, Hua-Mei Ma, et al. Effect of aromatase inhibitor treatment during adolescence on the final adult height in males with idiopathic short stature. *Horm Res Paediatr*. 2015; 82(Supp .1). 6. Li YH. Diagnosis and management of testicular adrenal rest tumors. *Chinese Journal of Practical Pediatrics*. 2016, 31(6):434-437. 7. Li YH, Du ML, Ma HM, et al. Evaluation of the efficacy of aromatase inhibitors in improving adult height in adolescent males with idiopathic short stature. *Journal of Zhejiang University (Medical Sciences)*. 2020, 49(3):300-306. **Monographs:** Participated in the writing of *Clinical Practice Guidelines for Children with Short Stature* and the first and second editions of *Adolescent Endocrinology*. **Other Main Work Achievements (e.g., Awards):** Third Prize of Guangdong Provincial Science and Technology Progress Award, Second Prize of Guangdong Provincial Science and Technology Progress Award (both ranked fourth). First Prize (First Place) in the 12th Clinical Teacher Teaching Skills Competition of Sun Yat-sen University. 2018 "Ye Rengao - Li Youji" Couple's Clinical Medicine Outstanding Young and Middle-aged Teacher Award. 2017 Top Ten Excellent Teacher Award of the First Affiliated Hospital of Sun Yat-sen University.