Graded cyclic loading test was made on granite and sandstone samples by point load tester and strain meter,and then the changing laws among load,strain,Poisson's ratio,damage factor and acoustic emission(AE) for the cyclic loading test on the samples were analyzed in detail,the relations between various parameters and accumulative AE counts on different level loading were obtained,on basis of the theory of statistics,the veracity and stability of different parameters to memorize their previous greatest value were estimated.The results showed that under point loading three rock samples had obvious memorizing effect,and load parameter was better than other parameters in the veracity and stability of memory.