Provided is a joint application of a statin and an adrenocortical hormone for preparing a pharmaceutical product for treating a chronic subdural hematoma. The pharmaceutical product provided by the invention is able to accelerate hematoma absorption and improve a therapeutic effect of a single oral administration of a statin-based pharmaceutical product. The quantity of the adrenocortical hormone-based pharmaceutical product used is 1/10 of the quantity used in a high-dose hormonal therapy.