Iron sucrose has been safely used in foreign countries for many years, and has been marketed in 68 countries and regions around the world, and its injection preparation is the oldest intravenous iron supplement. Iron sucrose injection in the treatment of iron deficiency anemia can promote the rapid entry of iron into endothelial cells, which is of great significance for erythropoiesis. Injection of iron sucrose injection is one of the most clinically used methods of iron supplementation. Compared with oral ferrous succinate, it has better iron absorption effect and is less prone to gastrointestinal Chemicalbook symptoms. Compared with other types of iron supplements, iron sucrose has a safe, rapid and effective iron supplement treatment effect, its side effects are far lower than other dosage forms of iron supplements such as dextran iron, iron sucrose has become the fastest growing class of products in the domestic iron supplement market. In addition, the study found that the treatment of diabetes patients with iron deficiency anemia by iron sucrose injection can obtain ideal therapeutic effect, which is conducive to improving the clinical indicators of patients, and is worthy of clinical promotion and application