The results show that the tensile strength as well as elongation at breaks for compatiblized blend membrane is improved. The fouling behavior of compatiblized blend membranes with optimum composition of EVA in BSA protein filtration showed that maximum flux recovery of 71%, which was 18% and 86% higher than that of neat blend and pure HDPE membranes, respectively. Addition of compatibilizer decreased the portion of irreversible fouling ratio and increased the portion of reversible fouling ratio.