The invention relates to a spherical revolving brush type batched electrostatic spinning device and a usage method thereof. The spherical revolving brush type batched electrostatic spinning device comprises a liquid supply system, a separating electric field control system, a spherical rotary spinning system and a nanofiber collecting system, wherein the liquid supply system comprises an air cylinder, a spinning solution storage bottle, an oil batch tank and a solution guiding tube, the spinning solution storage bottle is arranged in the oil batch tank, the spinning solution storage bottle and the solution guiding tube form a communicator structure through a solution brushing tank, the spinning solution storage bottle is connected with the air cylinder through an air tube, and a main valve and a pressure reducing valve are sequentially arranged at the position, close to the air cylinder, on the air tube. The separating electric field control system comprises a high-pressure generator, a metal round ring, a cylindrical seat and a support, wherein the support is arranged at the upper end of the spinning solution storage bottle, the cylindrical seat is arranged on the support, and the metal round ring is installed on the cylindrical seat in a sleeving mode to be connected with the high-pressure generator. Automatic supply of a high polymer solution and stable batched nanofiber preparation can be completed.