A Method for Identification of Wiener Model Liu Lan\ Hu Bo\ Hang XiaoqingIdentification of Wiener Model is treated by means of correlation . Results of this paper give an important checking criterion for identification of a nonlinear system as a black box .: Wiener Model; correlation; Volterra Series; Wiener theoryLiu Lan: Assoc.Prof.,School of Information Engineering,WUT,Wuhan 430070,China.