Based on GM (0, N) model and statistical theory, a new model was developed. It is shown below:X1(1) =b2 X2(1) +b3 X3(1)… +bn-1XN(1) +Σ (ajcosθi+bjsinθi)+ai The microbenthic annual biomass kinetic model in Jiaozhou Bay is established by using the GM (0, N, σ) model follow as: