The invention discloses a highly anti-yellowing PBT material with epoxy resin cohesiveness. The material is prepared from, by weight, 60-80 parts of PBT, 15-20 parts of cardanol amine, 15-20 parts of polyvinyl alcohol microspheres, 5-8 parts of sodium dodecyl sulfate, 5-10 parts of gelatin, 1-3 parts of light and heat stabilizer, 6-8 parts of glass fiber, 1-3 parts of methacrylic acid chromic chloride complex and 1-3 parts of silicone powder. After the material is introduced into a wrapped curing agent, the content of functional groups with the capacity of reacting with epoxy resin in the material is increased. Meanwhile, a microcapsule curing agent can break microcapsules under certain conditions and be slowly released, curing is finished, accordingly the aim of controlling the curing process of the material and epoxy resin pouring sealant is achieved, and interface cohesiveness between the material and epoxy resin is improved. Besides, by compounding the light and heat stabilizer, the material can have an excellent anti-yellowing effect and good high temperature resistance under the action of light and heat.