Preparation method of high-transparency flexible epoxy resin adhesive

The invention discloses a preparation method of a high-transparency flexible epoxy resin adhesive. The method comprises the steps of raw material preparation, proportional mixing, vacuum defoamation and curing, wherein in the step of raw material preparation, the epoxy resin adhesive is composed of a component A and a component B, wherein the component A comprises 60-80% of epoxy resin, 19-39% of low-viscosity modified epoxy resin, 0.1-0.5% of a defoaming agent and 0.1-0.5% of a flatting agent; and the component B comprises 64-99% of an amine curing agent, 0-20% of a curing agent promoter, 0-15% of a modifier, 0.2-0.5% of an antioxidant and 0.2-0.5% of an ultraviolet absorbent. The method has the beneficial effects that the adhesive prepared according to the invention has the characteristics of high transparency and good flexibility, therefore, the adhesive has broad market prospects in the covering and filling fields of lamp modules, LED components, flexible decorations, and the like.