**Introduction:** **Profile of Director Sun Liangzhong** **Academic Appointments:** Member of the Immunology Group, Pediatrics Branch, Chinese Medical Association; Member of the Pediatric Rheumatology and Immunology Committee, Chinese Medical Doctor Association; Member of the Nephrology Group, World Chinese Pediatric Physicians Association; Member of the Children's Health and Drug Research Committee, China Association of Traditional Chinese Medicine; Deputy Head of the Immunology Group, Pediatrics Branch, Guangdong Medical Association; Chair of the Children's Nephrology Committee, Guangdong Pharmaceutical Association. **Medical Expertise:** Pediatric renal and rheumatic/immunologic diseases: Primary glomerular diseases such as hematuria, proteinuria, (refractory) nephrotic syndrome, acute and chronic nephritis, acute and chronic renal failure. Secondary renal injuries, including systemic lupus erythematosus, Henoch-Schönlein purpura, hepatitis B and C virus-associated nephritis; hemolytic uremic syndrome, etc. In-depth research on congenital hereditary kidney diseases, such as congenital hereditary nephrotic syndrome, Alport syndrome, familial benign hematuria. Diagnosis and treatment of cystic kidney diseases and tubulointerstitial diseases in children, including polycystic kidney disease, medullary sponge kidney, juvenile nephronophthisis, renal tubular acidosis, Dent disease, Fanconi syndrome, Lowe syndrome, Bartter syndrome, interstitial nephritis, enuresis, nephrolithiasis, etc. Pre- and post-renal transplant management in children. **Medical Career:** Sun Liangzhong, Director of Pediatrics, Chief Physician, Doctoral Supervisor, Postdoctoral Supervisor. **Research:** Reviewer for journals including *World Journal of Nephrology*, *European Journal of Pediatrics*, *European Journal of Inflammation*, *The Application of Clinical Genetics*, *Renal Failure*, and *Chinese Journal of Nephrology*. Published over 40 papers as first/corresponding author in domestic and international journals. Editor-in-chief of 1 book. Principal investigator of 2 National Natural Science Foundation of China (General Projects) and multiple Guangdong provincial research projects. **Academic Appointments:** Member of the Immunology Group, Pediatrics Branch, Chinese Medical Association; Member of the Pediatric Rheumatology and Immunology Committee, Chinese Medical Doctor Association; Member of the Nephrology Group, World Chinese Pediatric Physicians Association; Member of the Children's Health and Drug Research Committee, China Association of Traditional Chinese Medicine; Deputy Head of the Immunology Group, Pediatrics Branch, Guangdong Medical Association; Chair of the Children's Nephrology Committee, Guangdong Pharmaceutical Association.