The invention discloses a finasteride-doxazosin controlled-release capsule, and belongs to the technical field of medicines. Common micro pills of finasteride and slow release micro pills of doxazosin are mixed and encapsulated to prepare the controlled-release capsule, wherein the weight ratio of the finasteride medicine to the doxazosin medicine in the capsule is 1:0.625-2.5. The composite capsule preparation utilizes high molecular polymers as auxiliary materials of the controlled-release preparation, the finasteride as the common micro pill and the doxazosin as the slow release micro pill; tests verify that: effective constituents of the two medicines not only can be mutually cooperated to achieve better curative effects, but also can stably release the medicines, avoid the differencebetween blood concentration at wave crest and wave hollow, and reduce toxic and side effects of the medicines on human body are reduced; moreover, the controlled-release capsule can also reduce the medicine taking time of a patient and improve compliance of taking medicines. The finasteride-doxazosin controlled-release capsule can be used as a medicine to treat hypertension and benign hyperplasiaof prostate.