PURPOSE: To prevent the spark generated from a motor from affecting a battery which generates hydrogen gas, by equipping this submerged vehicle with a battery, a motor, a power transmitting mechanism, a propeller, and a housing to cover them, and accommodating the battery within the airtight block provided in the housing.

CONSTITUTION: A bulkhead 13 to partition a battery 1 and a motor 2 is provided in a housing 5, and a battery storage block is formed in independent watertight structure. Moreover, for a passage 6 provided in the latter half of the housing 5, its front end opens at the bottom of a vehicles, and its rear end opens rearward of the vehicle, and a propeller 4 is arranged at the rear end. And, propelling force is obtained by rotating a propeller 4 by the operation of the motor 2 through a power transmission mechanism, and jetting the water sucked from the bottom of the vehicle to the rearward of the vehicle. At this time, when a person operates it lying on his belly, there is no danger of clothes being sucked in the propeller 4, so he can use it safely.