This invention relates to a dispatch control method and device for shared resource access which receives the resource request from MMNC in terms of arrival sequences, to be added into an array tail corresponding to the priority in a priority request array. The dispatcher sorts the process time by the processor to fixed dispatch periods, each is divided into multiple process time segments and a certain time slice quota is allocated to each time segment dynamically. In each period, request is selected according to the quota used situation first, secondly, if the quota is used up, the process period still has some time slices left, then selection is based on the priority of request, finally, if all the three kind requests are finished, if there are idle ones, the pre-operation request is selected to process them.