The invention relates to an intelligent coating processing device for a galvanized layer of a single-sided galvanized steel plate. The intelligent coating processing device comprises a base plate; a galvanizing operation frame is installed at the middle portion of the base plate; a guiding roller is mounted between the upper sides of the front and rear ends of the galvanizing operation frame through a bearing; the galvanizing operation frame is sequentially provided with a coating executing mechanism and a driven leveling mechanism from front to back; and two limit control mechanisms are mounted on the base plate and are symmetrically located on the front and rear sides of the coating executing mechanism. The intelligent coating processing device of the invention can solve the problems that the thickness of a galvanized layer on the surface of a steel plate cannot be accurately controlled, the uniformity of the galvanized layer on the surface of the steel plate cannot be ensured and the demand for manual subsequent processing of the galvanized layer results in great labor intensity and low work efficiency since the steel plate is directly immersed in a galvanizing tank during conventional single-sided galvanizing of the steel plate; and the intelligent coating processing device of the invention can realize the function of intelligent coating processing of the galvanized layer of the single-sided galvanized steel plate.