To study the effect of temperature on propagation laws of detonation waves of explosives,the corner turning performance of TATB(triaminotrinitrobenzene)based polymer bonded explosive(PBX)was studied by mushroom test apparatus at three different temperatures.The breakout image was recorded by a high-speed rotating mirror streak camera,the first breakout angles,failure angles and delay times of hemispherical explosive were obtained.Results show that the first breakout angle,failure angle and delay time varied with the ambient temperature.The delay time was lower at lower ambient temperature.The temperature will influence the chemical reaction rate of hemispherical charge at the initiation stage.