Overwater emergency rescue device

The utility model relates to a water emergency rescue device which comprises a bearing body and a front shell, and the tail of the front shell is connected to the head of the bearing body; the bearing body comprises two side cavities, the tail portions of the two side cavities are oppositely arranged on the two sides of the bearing body in the width direction, and the two side cavities gradually extend towards the middle position of the bearing body in the width direction in a closed mode from the tail portions to the head portions. The width and the height of the front shell are gradually reduced in the direction from the tail to the head, and the two side faces of the front shell are gradually folded, extend and are connected towards the middle of the width direction of the front shell in the direction pointing to the head, so that the connecting position of the head of the front shell is of an arc-shaped corner structure. According to the structure of the bearing body, the gravity center of the bearing bod