To provide a tsunami life jacket which protects the body and face from the floating wreckage of debris or the cold, and is able to prevent sinking into water and to provide oxygen supplementation easily with twice or more buoyancy, since in the past there has been no life jacket for which a countermeasure is taken against that the user suffers from dyspnea, that the bladder breaks with debris, or that it is useless, etc., when the user is swallowed up by a tsunami, due to its minimum buoyancy with which a person only floats.

A buoyant material 2 is equipped on the surface side of a jacket, an oxygen supplementation bladder 3 is provided on the rear side, a compression/release check valve is provided in a flexible pipe air inlet 9, which is connected to the oxygen supplementation bladder by a bellows pipe, and a face protection face is provided.