M.S.Abbas [1] introduced and studied the concept of fully stable Rmodules and called a ring R is fully stable ( pseudo - stable ) if it is fully stable ( pseudo - stable ) R-module . And A.M.Abdul-Daim [2] introduced and studied the concept of fully – stable rings as a generalization of fully stable rings . The purpose of this paper is to generalize the concept of fully pseudo – stable rings to fully – pseudo - stable rings . Some properties and characterizations of fully – pseudo – stable rings are obtained . A condition is given such that a fully – pseudo – stable ring is fully – stable .