The invention provides a multi-spray-head electrostatic spinning device, and relates to an electrostatic spinning device. The multi-spray-head electrostatic spinning device is provided with a controllable injection device, a liquid guide pipe, a liquid distribution device, a high-voltage power supply, an upper layer gas hood, a lower layer gas hood, a curved surface electrode plate, spinning spray heads, an adapter, a lower layer gas guide pipe, an auxiliary pressure regulating valve, an auxiliary gas pump, an upper layer gas guide pipe, a pressure regulating valve, a gas pump and a receiving device. The batch continuous spinning is carried out through the spray heads, double layers of auxiliary gas flows are introduced, the electrostatic spinning speed is accelerated through the drawing force of the upper layer of auxiliary gas flows, the electrostatic spinning efficiency is improved, the nanometer fiber is refined, and the electro-spinning nanometer fiber diameter is reduced. The uniform distribution of the electro-spinning nanometer fiber on a collecting plate is promoted through the lower layer of auxiliary gas flows, the thickness uniformity of a nanometer fiber membrane is improved, the quality of the electrostatic spinning nanometer fiber is improved, charges at the jet flow surface can be carried away, the surface charge density is reduced, and the electrostatic interference among the jet flows is reduced. The electric field concentration phenomenon and the electrostatic interference can be reduced, the spray heads are convenient to dismount, clean and replace, and the operation and the control are easy.