In this paper,the problem of cooperative state feedback control for a class of large-scale linear systems described by delta operator is studied.First,according to the independent subsystem described by delta operator,an interconnected closed-loop control system is given through cooperative state feedback controller.Then,based on linear matrix inequality,the sufficient conditions for the design of coordinated state feedback stabilizing controller and cooperative state feedback guaranteed cost controller are given,and the validity of the proposed method is proved by Lyapunov stability theory.Finally,simulation examples show the effectiveness and superiority of the proposed algorithm.