The equation of wall slip velocity during lubricating grease pipe flow was established based on HerschelBulkley(HB) rheological model of lubricating grease shear flow,RabinowichMooney equation of wall slip and theoretical model of lubricating grease pipe flow,in order to study the effect of temperature on wall slip of lubricating grease pipe flow.The influence factors and variation for wall slip velocity were analyzed.The rheological properties of lubricating grease from 25 ℃ to 85 ℃ were studied by using rough measuring plate model of rotational rheometer.The parameters of HB rheological model were obtained at various temperatures.Effects of both pipe diameter and pressure gradient on wall slip velocity were investigated based on the results of lubricating grease rheological properties.The improvement effect mechanism of wall slip during lubricating grease pipe flow was illustrated.It is found that the wall slip velocity of grease pipe flow is increased with the increasing of both pipe diameter and pressure gradient,and the wall slip is obviously improved with the increasing of temperature.