Correlation of rheological response with microstructure and also the tensile mechanical properties of Nanoclay-filled Polyethylene (PE)/Ethylene vinyl acetate (EVA) blends were studied. From transmission electron microscopy observations, the same clay localization within PE-and EVA-rich blends was revealed. But the better clay dispersion in the EVA-rich blend was found by analyzing the changes in the linear viscoelastic rheological properties discussed by the fractional Zener model and the power law expression. Clay influences on the tensile properties of PE-and EVA-rich blends were in good agreement with its microstructure, implied by the rheological studies.