Abstract: A chute type sterilizing and washing device for a cap, in which deformation of a cap is prevented by relaxing integral pressure acting on a synthetic resin cap in the chute, and sterilization and washing can be carried out efficiently by reducing the impact of hot water on germ-free water jetted at the upstream side on the hot water or germ-free water at the downstream side. The chute (5) has ascending chute portions (7, 9), a hot water pipe having a plurality of nozzles for jetting out hot water as a sterilizing and washing medium is arranged along the ascending chute portion, hot water is jetted to a cap fed to the ascending chute portion, the cap (35) receives a thrust for ascending the ascending shoot portion by the jet pressure of the hot water thus sterilizing and washing the cap with the sterilizing and washing medium and conveying.