Scooter type motorcycle

The invention relates to a scooter type motorcycle, comprising an air cleaner (21) supported above a transmission case (6) of a unit swing type power unit (6). The invention aims to provide a scooter type motorcycle that is capable of preventing rainwater, mud water, or the like from penetrating the inside of an air cleaner from an air inlet of the air cleaner. Therefore, the invention provides that an opening (100) of an air inlet (36) of the air cleaner (21) is provided with a projecting portion (30b1,31d1,101).