By comparing traditional paper printing, tinplate printing technology is relatively complicated. From the perspective of printing materials, tinplate is non-absorbent; from the perspective of printing can making technology, the tinplate must first be coated with paint before printing; from the perspective of printing ink, Iron printing ink is mainly thermosetting ink, which needs to be dried at high temperature. There are many factors for the change of ink hue, which are mainly determined by the particularity of the iron printing process. This article mainly focuses on analyzing the factors that affect the humorous hue of tinplate in printing.