Aim\ To study the rheological property of HDPE/HDPE g MAH/CaCO 3 blends. Methods\ The effect of disperse phase quantity about CaCO 3 and HDPE g MAH on rheological property were discussed by capillary rheometer. Results\ The apparent viscosity was increased by added CaCO 3 and HDPE g MAH. The non newtonian behavior of blends was increased
too. Conclusion\ The results have a guide function for producing technology and mold design.