Proper diet can achieve the purpose of resisting the side effects of hormone therapy, reducing symptoms and replenishing energy and nutrition consumed by the disease. 1, high quality protein: patients with lupus nephritis have a lot of protein lost from the urine, which can cause hypoproteinemia, but due to impaired kidney function should not eat a lot of high-protein food. It can be supplemented by the intake of sufficient high-quality protein, such as milk, egg white, meat, fish and other protein-rich foods, and reduce the intake of vegetable protein. 2. Low-sugar diet: Since patients with lupus nephritis mostly take glucocorticoids for a long time, it is easy to cause steroidal diabetes mellitus and Cushing’s syndrome, so it is necessary to control meal size appropriately and eat less food with high sugar content. 3, low-salt diet: lupus nephritis patients due to kidney damage easily lead to water and sodium retention, causing edema and increased blood pressure, so patients should also limit the intake of water, low-salt diet, so as not to increase the burden on the kidneys. 4. Supplement calcium to prevent osteoporosis caused by long-term use of glucocorticoids; eat more vegetables and fruits rich in vitamins. In fact, the dietary adjustment of lupus erythematosus is complicated and varies from person to person, and individual problems should be treated individually because of the big difference among patients. The principle of mastering is neither “choking to waste food” nor “recklessness”, and patients can make appropriate adjustments according to their conditions and physical status.