Power propulsion device for aquaculture ship

The utility model belongs to the technical field of power propulsion devices, and particularly relates to a power propulsion device for an aquaculture ship, which comprises a support component, a gasoline engine generator, a motor, a transmission, fan blades and an adjusting component, wherein the gasoline engine generator, the motor and the transmission are mounted at the top of the support component; the gasoline engine generator, the motor and the speed changer are installed on the tail portion of the breeding ship through matching of the supporting assembly and the installation plate, the gasoline engine generator supplies power to the motor, and therefore the speed changer drives the fan blades to rotate. The propelling device provides air power for advancing of the breeding boat, the breeding boat can be driven to travel, steering of the breeding boat is facilitated, meanwhile, waterweeds and bred fry, shrimp seeds and crab seeds in a breeding pond cannot be damaged by the fan blades, the breeding boat