The Output property of phase conjugation enhanced by the effect of incoherent erasures upon Ce: BaTiO 3 self pumped phase conjugator is studied. This result is experimentally achieved by using incoherent beam illumination along the c axis  direction of the crystal when a He Ne laser generates steady phase conjugate signal. In the cases of the incident position of the erasure beam gradually movement, it is found that the reflectivities are increased by incoherent erasure beam. The results is analyzed and discussed.