Primary nephrotic syndrome(PNS) is one of the common renal diseases in children. There are many deficiencies and drawbacks in traditional western medicine treatment. In recent years, the treatment with integrated traditional Chinese and western medicine has achieved fruitful results. The author analyzes and summarizes Prof. Zheng Jian's experience in the treatment of PNS in order to provide ideas for the clinical treatment of children with nephropathy. Since Qian Yi of Song Dynasty put forward the idea of "kidney governing deficiency, no excess", the style of kidney without excess has prevailed among generations of physicians. However, the kidney excess has long been recorded in ancient medical books,which are discussed in the works such as Inner Canon of Huangdi, Synopsis of Golder Chamber and Maijing. Professor Zheng Jian believes that Qian's views can be interpreted as "kidneys usually govern deficiency, and there is also excess". Based on this thought, Prof. Zheng concludes that the pathogenesis of pediatric PNS in traditional Chinese medicine is mainly based on kidney deficiency, but in the course of the disease, there may also be symptoms caused by wind pathogens, blood stasis, damp-heat and other pathogens. The disease often has the characteristics of deficiency in root and excess in appearance, mixed deficiency with excess, repeated occurrence, protraction and difficulty in healing,etc.; therefore,in the clinical diagnosis, it is necessary to distinguish between the primary and secondary and between deficiency and excess of kidney disease according to the course of the disease. In the treatment, while dealing with the kidney deficiency, it's necessary to eliminate wind, remove dampness, clear heat and remove blood stasis, etc., which can benefit the lungs, strengthen the spleen, warm the kidneys, clear the liver, strengthen the body and reduce turbidity to regulate the yin and yang of various internal organs. Professor Zheng has been a doctor for more than 30 years, and he has been using this method in the treatment of children with PNS, which has great effects. A medical record is attached for verification.