The utility model provides a high strength super large specification flag, it includes the flag face of rectangle, this flag mask of has four bights, and each bight back subsides is equipped with double -deckly and the cloth piece of this flag facial features with the material, a side of this flag face be equipped with be used for with the fixed flag trousers of halyard, borduring of built -in nylon meshbelt is made up to three side in addition. The utility model discloses can solve super large specification flag naval vessel navigation hang with the high wind condition under use the stability of flag, make the flag possess better wind resistance and tear resistance, improved the effect of flutteing of flag. Simultaneously, because the utility model discloses the flag trousers and the fly of having consolidated the flag can be hit the phenomenon to fiercely taking out of flag face self and alleviate, consequently the utility model discloses the life of super large specification flag has still been prolonged to a certain extent.