Iterative formulas of JE convolution finite-difference time-domain(JEC-FDTD) algorithm for 3 dimension anisotropic magnetized plasmas were proposed.It had been Pointed out that the difference of the parallel JEC-FDTD algorithm and the general parallel FDTD algorithm.The current density iteration has been added

and more many datum have been exchanged in the common boundaries.And the parallel program of JEC-FDTD algorithm had been gotten based on the MPI.Parallel JEC-FDTD program was reliable by the example that RCS(radar cross section) of conduct sphere coated plasma had been calculated

and parallel efficiency of parallel program was tested in one cluster.Finally the back RCS of one airplane coated the magnetized plasmas was calculated by the parallel JEC-FDTD.The results indicate that the parallel JEC-FDTD is reliable;its parallel efficiency is high;and it has ability of deal with the scattering characteristics of the electrically large magnetized plasma targets.