In order to investigate the mechanical behavior of asphalt concrete core wall in complex geological environment，based on laboratory tests，the shear mechanical properties of asphalt concrete under two shear angles，three test temperatures and five strain rates were studied.Through experimental analysis，the correlation of shear stress-temperature-strain rate-angle under complex environment is obtained.The results show that the shear stressstrain curve of asphalt concrete shows three-stage change characteristics when the shear angle，temperature and rate are the same.When the angle and rate are the same，the higher the temperature is，the lower the shear stress and the greater the strain of asphalt concrete are.The trend of elasticity to plasticity changes；when the temperature and shear rate are the same，the larger the angle，the smaller the shear stress；when the same shear angle and temperature，the shear stress increases exponentially with the increase of shear rate.