The invention belongs to the technical field of artware processing, and particularly relates to a dyeing method for improving the corn bract dyeing effect. The method comprises the steps that corn bract is subjected to steam and frozen treatment at first, movement of corn bract molecules is effectively promoted, molecule activity of corn bract is improved, absorption of follow-up soaking liquid and dyeing agent ingredients is facilitated, and toughness and fracture resistance of corn bract can be effectively enhanced; the soaking liquid is used for soaking, orange light and green light with different light intensities are used for illumination, fusion between soaking liquid ingredients and corn bract is effectively promoted, harmful bacteria and microorganisms in corn ban can be effectively killed, and meanwhile sun resistance of corn bract can be effectively improved; and a dyeing agent is heated for dyeing, orange light and green light with the same light intensity are used for illumination, fusion between the dyeing agent and corn bract tissue cells is effectively promoted to achieve fusion of tissue cells, and therefore the corn bract is uniform, fresh and bright in color and luster, fresh and elegant in fragrance, stable in coloring performance and not prone to fading when exposed under rain and sun.