A heat-resistant benzoxazine epoxy resin (BOZ/EP) was synthesized, the synthetic technics and physical property were studied and the effect of temperature on the activity of the heat-resistant resin was investigated in this paper. With E-fibre glass fabric as the strength enhancer and BOZ/EP heat-resistant resin compound system as the adhesive, Supporter for Stator winding End of turbogenerator were prepared. All of the properties of the sheet were tested. The results show that the mechanical and heat-resistant properties of the supporter can meet the requirements of turbogenerator, and the cost is relatively lower.