A series of uniaxial tensile tests were carried out to study the tensile performances of the specimens in eleven directions including 0°, 5°, 15°, 25°, 35°, 45°, 55°, 65°, 75°, 85° and 90°, and six tensile rates (10，25，50，100，200，500mm/min) were also considered. The relationship between stress states and failure modes was discussed, and the relationship between the main parameters and tensile rates & off axial angles were obtained. Results show that with off axial angle increasing, the tensile strength decreases while the strain at break increases. Three failure modes can be observed, including failure of even fracture, yarns pulled out and mixed failure, which are related to the stress states. With tensile rate increasing, the tensile strength increases slightly while the strain at break decreases. The tensile strength and strain at break show good linear relationship with tensile rates logarithm.