The present invention relates to a suction pile. Provided is the suction pile which increases a contact surface of a side wall member and the sea bottom with a method which does not increase the size of the suction pile and improves frictional force and pullout resistance and can maintain stable fixation power by forming the side wall member which is practically interpenetrated into the sea bottom to a multiple partition structure, and can be smoothly interpenetrated since interpenetration resistance against the suction pipe does not occur during the interpenetration by forming a pressure discharge hole to the side wall member so that sea water stored in an inner space of the suction pile can be discharged to the outside during the interpenetration of the suction pile.
