The present invention relates to a vessel for carrying and transporting cargo and passengers as well as various marine activities, and in particular, converts the vertical movement of the sub-elevating body by wave power into the rotational power of the drive shaft by the power transmission means, By using the propeller rotational power, the compressed air stored in the sub-sphere through the compressor mounted on the power transmission means, when the low crest is low to rotate the drive shaft and the propeller by using the compressed air to propel the ship,;There is no burden of fuel cost because the ship can be operated by using wave power, which is a natural resource, without using any fuel from petroleum resources, and there is no burden of fuel cost. Accordingly, the propulsion speed of the ship can be easily added or decreased, and thus it is about a self-propelled ship using the kinetic force of the elevating structure caused by the wave which is very environmentally friendly and economical.
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