The invention belongs to the technical field of automation, and particularly relates to an intelligent spraying system. The intelligent spraying system comprises a sliding structure, a transmission device, a spraying device and a control device, wherein the transmission device is arranged on the sliding structure, the spraying device is arranged on the transmission device, and the transmission device and the spraying device are correspondingly and electrically connected with the control device; and the spraying device comprises an air compressor, a three-way structure, a spray-head module anda container. During the work, the position of the transmission device can be adjusted through the sliding structure, and the position of a nozzle can be adjusted through the transmission device, so that the nozzle corresponds to a workpiece, and then the air compressor is started; under the action of the three-way structure, the workpiece is selectively subjected to mist spray or air injection through the nozzle, the system is simple in structure, can adapt to different work environments, and is intelligent and efficient in working. In addition, the invention further provides a working processof the system, and the working stability and efficiency of the system are improved.