Five kinds of marinated cooled beef were compared on the compressed and stress relaxation properties to find out the parameters of mechanical and theological property.The SPSS software was used to make non-linear regression and created general Maxwell model.The results showed that marinated cooled beef has good viscoelastic mechanical property during compression,and it belongs to viscoelastic material,whose stress relaxation can be simulated by the general Maxwell model of five elements.By principal component analysis of stress relaxation,seven stress relax test parameters can be classified into two principal components,viscoelasticity and stress relaxation time.