A review with 21 references to introduce the formulation of alprostadil and the research progress.The present formulation of alprostadil such as injection powder, injection emulsion, urethral suppository, and ointment, and novel formulation such as injection liposome, freeze-drying powder, cyclodextrin inclusion freeze-drying powder, freeze-drying emulsion, micelle for injection, nasal powder, and buccal tablets, are discussed.