The realization of a kind of all-optical wavelength router that is controlled by electrom was described in this paper.At first the structure and the working principle of this device was introduced.Afterwards according to the two main components of this system
it introduces the original design of the optical cross-matrix and the realization of the corresponding control system were introduced.The working principle of the control system was discussed in detail and then the design philosophy was brought forward.At last the test result of the prototype was showed.