Ship-based sea surface garbage collecting device

The invention provides a ship-based sea surface garbage collecting device. The ship-based sea surface garbage collecting device comprises a collecting device main body fixed to a ship and a water pumping component, wherein a collectivity cavity is arranged in the collecting device main body; an inlet pipeline is arranged on the top of the collectivity cavity; the water pumping component comprisesa water pumping pipe; a driving component is arranged in the water pumping pipe; a bottom water inlet of the water pumping pipe makes contact with the sea surface; a top water outlet of the water pumping pipe is arranged above the inlet pipeline; and the driving component is used for transferring seawater containing garbage to the collecting cavity through the water pumping pipe, and then the garbage is bagged and transferred through a collecting component arranged in the collecting cavity. The ship-based sea surface garbage collecting device can be used for collecting and bagging the garbagefloating on the sea surfac