Abstract: Considering two-mode entangled coherent light fields,one mode of the fields is poured into the cavity and interacts with a two-level atom by k photons non-resonantly.After the evolution of Cavity-QED,we have a selective measurement to the atom.Through operating the evolution time,the number of transition photon and detune,we can control the quantum statistical property of the light fields outside of the cavity.After comparative analysis,it is found that,comparing with single photon process and t..