Conventional chopped fiber reinforced insulations have poor lateral properties,low interlaminar shear strength,and insufficient impact resistance.We prepared several fabric reinforced ethylene-propylene-diene monomer（EPDM） insulations.The effects of methods of fiber surface modification on the adhesion properties between EPDM and fabrics including polyimide (PI),aramid (F-12) and carbon fiber (CF) was investigated.We choose preferred fiber treatment methods to modify the fabrics and fabricate several fabric reinforced EPDM insulations.The mechanical properties and ablation resistance of the insulations were characterized by tensile strength,elongation at break and linear ablation.The results show that the tensile strength of the insulations are all above 30 MPa,and the ablation resistance is excellent. Under the three fabric-specific woven structures,PI/EPDM has lower ablation rate,the most complete carbon layer retention,so PI/EPDM is expected to be used in high-performance solid rocket motors.