Intelligent code spraying device and using method

The invention provides an intelligent code spraying device and a using method, and belongs to the technical field of code spraying equipment. The intelligent code spraying device comprises a code spraying assembly, a fixing assembly and an anti-falling assembly; the code spraying assembly comprises an intelligent code spraying machine, a gradienter and a base, and the gradienter is fixed to the upper surface of the intelligent code spraying machine; and the fixing assembly comprises a supporting plate, first sliding rails, first sliding blocks, first locking pieces, second vertical plates, second sliding rails, second sliding blocks, second locking pieces, clamping arms and third locking pieces, and the first sliding rails are fixed in the supporting plate. During use, when the intelligentcode spraying machine falls off from the hand carelessly by an operator, a spring, an elastic rope, third sliding rails and third sliding blocks jointly buffer the downward impact force of the intelligent code spraying machi