The present invention provides a movement device comprising a shell, and an outer fluid channel and an inner fluid channel are sequentially formed in the shell; the outer fluid channel communicates with the outside through a plurality of first ports, and the inner fluid channel communicates with the outside through a plurality of second ports; flow disturbing devices concave and convex relative to the surface are arranged in the outer fluid channel; the pressure difference generated due to different flow speeds between the outer fluid channel and the inner fluid channel serves as the propelling force source of the movement device. A pressure difference transferring circle formed around the shell by the pressure difference between the inner layer and the outer layer is used by the present invention for increasing the traveling speed of the movement device.