Tribological behaviors of Babbitt alloy ZSnSb8Cu4 sliding against 45 steel under different conditions were investigated.The worn surface of Babbitt alloy ZSnSb8Cu4 was tested by XRD,SEM and EDS.The results indicate that the friction coefficient and wear rate remain low and stable when the temperature of wear sample under 130℃.The phases of the samples surface change obviously when the temperature of the sample over 130℃,and the wear becomes severe with Babbitt alloy melt instead of the slight abrasive wear.