Full-automatic ocean surface drifting buoy with controllable drifting path

The invention discloses a full-automatic ocean surface drifting buoy with a controllable drifting path, which comprises a buoy main body, a position monitoring module and a control system used for driving the buoy main body to leave a stranding position or sail in a direction far away from a coastline when monitoring that the buoy main body is stranded or the distance from the buoy main body to the coastline is smaller than a set value, the control system comprises first, second, third and fourth water inlet and outlet ports which are symmetrically formed in the lower hollow hemisphere in the circumferential direction and are communicated with one another, and sealing parts for opening and closing the water inlet and outlet ports respectively; and a synchronous driving device for opening the sealing component, controlling seawater to enter or drain from the bottom of the spherical shell and the first and third or second and fourth water inlets and outlets and driving the spherical shell to move is arranged in