With the improvement of living standards, people are paying more and more attention to diet. In addition to medication, it is hoped that the disease condition can be improved through daily diet, or avoiding activities that induce the disease due to improper diet. For patients with SLE, dietary treatment is an adjunctive treatment and there is no international dietary treatment plan for the disease. However, there are still some principles to follow in the diet of SLE patients: 1. avoid excessive energy intake; 2. avoid excessive protein intake; 3. avoid high-fat diet; 4. avoid excessive intake of foods containing zinc or iron; 5. avoid eating allergic foods; 6. more intake of foods containing calcium and vitamin D for patients taking hormones.