The invention provides an SPTE (Steel Plate Tin Electrolytic) print-coating method, color-printed iron and a color-printed iron container. The method comprises the following steps: print-coating one surface of SPTE with UV transparent ink, curing the UV transparent ink, with which the surface of the SPTE is print-coated, with a UV light set to form a UV ink layer, printing various colored ink corresponding to preset printing procedures onto the UV ink layer in sequence, curing the printed colored ink with the UV light set to form a preset printed pattern, and performing gloss finish on the preset printed pattern with gloss oil to form a pattern gloss oil layer. According to the technical scheme provided by the invention, the surface of the SPTE is print-coated with the UV transparent ink, so that a traditional primer coating procedure is simplified, the printing efficiency is increased, the production cost is lowered, and the emission of VOC (volatile organic compounds) exhaust gas produced by primer baking is avoided.