The invention relates to a system for realizing information communication and relative distribution method. Wherein, said system comprises an input port and a communicate unit; the input port is used to input data pack; said communicate unit is used to communicate date between the input port and the output port; the input port has delay queue; the input port divides each delay queue and selects data pack to be transferred to the communicate unit; the communicate unit stores the data pack and selects data pack to be transferred to the output port. The invention can divide the service data, and increase the insulation level according to the service demand.