The design principle of the phase Fresnel lens is analysed in this paper. The Fresuel microlens arrays with four-level phase is fabricated and is used in the module of crossover optical interconnection network.It has the adventages of small unit size,fill factor of the available area of 100%, short focal length, easy to collimation and uniform distribution in spots intensity. It can meet the needs of small size, integration andmodularization for optical interconnection network.