The specific life expectancy of moderate thalassemia cannot be generalized, it is related to the severity of the patient’s condition and later treatment, and there is no valid data yet. 1. Thalassemia is a kind of hemolytic anemia caused by the reduction of synthesis of hemoglobin peptide chain due to the deletion or mutation of hemoglobin peptide chain gene, and it is a relatively common genetic disease. 2. Moderate thalassemia can occur in children and adults. Children with thalassemia have no obvious symptoms at birth and usually develop mild or moderate anemia around one week of age. Most of the patients have hepatosplenomegaly and mild jaundice, while a few patients have bone changes. 3. Most thalassemia patients can live to adulthood, but how long they can live depends on the severity of the disease and their physical condition. Thalassemia patients should be actively treated after diagnosis, and effective treatment can prolong the survival period.