The invention discloses a small emergency navigation mark. Marine accidents, marine peril conditions, channel changes and unpredictable conditions happen time to time, at this moment, the emergency navigation mark needs to be put into use, however, the aspect of the small emergency navigation mark is in an empty state currently. The small emergency navigation mark is composed of an upper buoy and a lower floating body. The upper buoy is filled with a polyurethane foaming material, the lower floating body is hollow, two to four drainage holes are formed in the side wall of the lower floating body, two lifting lugs made from reinforcing steel bars are symmetrically arranged on the shoulders of a navigation mark body, and two pins of each lifting lug are welded to a lifting lug reinforcing steel bar and a strengthening reinforcing steel bar and connected with an anchor chain reinforcing steel bar. An anchor chain connecting buckle is welded to the lower end of the anchor chain reinforcing steel bar. The small emergency navigation mark is integrally formed through glass fiber reinforced plastic, the weight is small, the overall weight does not exceed 100 kilograms, the navigation mark can be manually thrown under the condition that no equipment is available, the corrosion resistance is good, the impact resistance is high, water is not absorbed, and forming is convenient.