Abstract Photoionization Processes of the Na7+ ion are studied by using The multiconfiguration relativistic random-phase approximation theory. Precise energies and widths of all five Rydberg series of doubly excited resonances ( 2pns ) 1P1o 、( 2pns ) 3P1o 、( 2pnd ) 1P1o、( 2pnd ) 3P1o、( 2pnd ) 3D1o are given. Experimental studies on the angular distribution and spin polarization of photoelectrons are suggested to obtained information on energies and widths of certain resonances which do not show in cross-section measurements