In order to simulate the loading condition of shell/ insulation / liner/ propellant bonding system in solid rocket motor combustion chambers, a multi-angle tensile clamp was designed for rectangular adhesive specimen according to QJ 2038.1A-2004, and the pure tensile, pure shear and tensile-shear mixed stress on the specimen interface were realized. Results show that the tensile angle (the angle between tensile direction and normal direction of interface) increases from 0° to 90°, and the critical load decreases from 1166 N to 420 N, and the critical maximal principal stress decreases from 0.945 MPa to 0.461 MPa. The critical maximal principal stress ratio of upper interface increases from 1.1 to 2.7 and little change in lower interface, indicating the fracture initiation locations of the specimen are consistent with the calculated.