The utility model relates to a waterproof jacket, specifically is a kind of anti-drowning waterproof jacket, including waterproof jacket body, detachably install air bag at the collar of waterproof jacket body, air bag is placed along the front and back of the shoulder of waterproof jacket body, and is shielded by front stoppage and rear stoppage, the front stoppage is at the end of rear stoppage away from the shoulder of waterproof jacket body by magic tape and the waterproof jacket body is adhered;Air bag is connected with inflator unit, and the inflator unit is used to quickly supply air to air bag;When air bag is not inflated, the position close to magic tape is formed with inner fold, and the inner fold is between magic tape. The inner fold formed on air bag is between magic tape, when air bag is inflated, the inner fold can be quickly turned outwards, so as to rush open magic tape, so that air bag can float quickly, keep the head of user at upper side, eliminate security risk.