The invention relates to the field of wave gliders, and aims to provide a long-distance autonomous wave glider without power consumption. The long-distance autonomous wave glider without power consumption comprises a floating body, flexible cables and a power device, wherein the floating body comprises a floating body connecting plate, a first buoy sealing cylinder, a second buoy sealing cylinder, a GPS (Global Positioning System), a single chip microcomputer, a solar cell panel, an accumulator cell and a controller; the power device comprises a side plate, a fixed screw rod, wing pieces, a stepper motor and a rubber piece; two flexible cables, consisting of a first flexible cable and a second flexible cable, are arranged; the first buoy sealing cylinder is connected with the side plate at the corresponding side of the power device through the first flexible cable; the second buoy sealing cylinder is connected with the side plate at the corresponding side of the power device through the second flexible cable. According to the long-distance autonomous wave glider without the power consumption, the whole glider is driven forward through interaction force between the wing pieces of the wave glider and water flow; electric energy produced by the solar cell panel is only used for regulating the turning of the wave glider, so that the cruising ability of the glider is strong.