In this paper, such problems of polling system with bulk arrival and Bernoulli Feedback are considered as follow: To Gated Service disciplines, we derive the relation of F i+1 (z 1,z 2,...,z N ) and F i(z 1,z 2,...,z N ), give means of queue lengths at polling instant of each station;the means of polling cycle time , and intervisit time are obtained. To discrete-time Service disciplines, we derive the relation of F i+1 (z 1,z 2,...,z N ) and F i(z 1,z 2,...,z N ) , obtain the service time of each station.