Aramid fiber (Kevlar 29) reinforced polymers (AFRP) samples were tested by utilizing a MTS servo-hydraulic high rate testing machine in order to investigate their mechanical properties at different strain rates (25, 50, 100, and 200 s-1) and temperatures (-25, 0, 25, 50, and 100 ℃). The results show that at the same temperature (25 ℃), Young's modulus and tensile strength increase with the increase of strain rate firstly (25 to 50 s-1), and then decrease under the greater strain rate (50 to 200 s-1), while the opposite occurs for toughness. When strain rate is constant at 25 s-1, Young's modulus shows a trend of fluctuation under elevated temperatures, while the tensile strength and toughness show no substantial temperature effect. The failure patterns of AFRP samples were similar at the investigated strain rates and temperatures, and the fracture surfaces were relatively straight. Moreover, Weibull statistics were used to quantify the degree of variability in failure strength at different strain rates and temperatures.