This study is a prospective, multicenter, randomized controlled trial. A total of 216 adult patients with newly diagnosed wAIHA were planned to be included and randomly assigned in a 1:1 ratio to the experimental group (glucocorticoid combined with sirolimus) or the control group (glucocorticoid monotherapy). The initial dose of sirolimus in the experimental group was 1mg/d, adjusted according to the blood drug concentration. The target concentration was 4-12ng/mL, and the treatment course was 6 months. Both groups of hormones were gradually reduced according to the standard protocol. All patients were followed up for 24 months, and the differences between the two groups at endpoints such as the hormone-free sustained response rate at the 12th month were compared.