Abstract: A device capable of suction-adhering to a surface and moving therealong includes a pressure receiver, a partitioning device mounted on the pressure receiver and defining a pressure reduction space in cooperation with the pressure receiver and the surface, and a pressure reducing device for discharging a fluid from the pressure reduction space to decrease the pressure inside the pressure reduction space. The partitioning device includes a lip portion extending along the surface. A plurality of contacting devices are disposed at intervals at the part other than the outer peripheral edge portion in that opposing face of the lip portion of the partitioning device which is located opposite to the surface. The outer peripheral edge portion in the opposing face of the lip portion is brought into contact with the surface. At the same time, at the part other than the outer peripheral edge portion in the opposing face of the lip portion, the contacting devices are brought into contact with the surface.