High performance concretes mixed with fly ash,fly ash and blast furnace slag,and fly ash and polypropylene fiber were designed and cast respectively.Based on the test results,the probability distribution for the static axial compressive strength of high performance concrete(HPC)was studied and the probability distribution of fatigue life and the expression of compressive fatigue strength were proposed.Finally,the comparative analysis for fatigue strength of HPC under both high and low stress ratio were made.