The application belongs to the technical field of electrostatic spinning, and particularly relates to an electrostatic spinning device. In an electrostatic spinning process, the charges injected at high voltage remain inside fibers along with the solidification of electrospinning fibers, thereby affecting the subsequent deposition process of the electrostatic spinning, and finally causing the electrostatic spinning process to terminate. The invention provides the electrostatic spinning device. The electrostatic spinning device comprises a liquid spraying mechanism and an ultraviolet light generating mechanism, wherein the liquid spraying mechanism is matched with the ultraviolet light generating mechanism; and the liquid spraying mechanism comprises a liquid supply assembly and a spray head assembly which are connected with each other, and the liquid supply assembly is connected with a high-voltage power supply. The residual charges in the spinning fibers are dissipated through ultraviolet light, the influence of residual charges on the applied electric field is eliminated, the stability of the electrostatic spinning process is improved, the yield of the spinning fibers and the accumulated thickness of the spinning fibers are greatly improved, the time cost of electrostatic spinning is reduced, and the application range of the electrostatic spinning technology is widened.