Water environment monitoring buoy

The utility model discloses a water environment monitoring buoy, and relates to the technical field of water environment monitoring. Comprising a floating air bag which is of a circular-ring-shaped structure; the annular supporting plate is connected to the inner side of the floating air bag, and the inner side of the annular supporting plate is used for installing water environment monitoring equipment; the anti-collision mechanisms are arranged on the annular supporting plate, the anti-collision mechanisms are of the same structure, and the anti-collision mechanisms are evenly distributed on the outer side surface of the annular supporting plate in the circumferential direction; each anti-collision mechanism comprises an impact bearing plate, a vertical-direction anti-collision structure and an inclined-direction anti-collision structure, wherein the vertical-direction anti-collision structure and the inclined-direction anti-collision structure are used for elastically supporting the impact bearing plate. T