Patients with nephrotic syndrome should first strictly limit their water intake. In hot season, the intake of water and salt can be appropriately relaxed, the daily salt content should not exceed 1 ~ 2g, and the calorie intake should be appropriately limited. In addition, we should supplement enough calcium and vitamin D and protein. It is appropriate to supply 1.5 ~ 2.0g per kilogram of body weight. Generally, high-quality protein with high bioavailability such as lean meat and fish should be selected. Avoid eating cold, greasy and irritating food at ordinary times, pay attention to keep warm and prevent colds.