Polymer extrusion is one of the largest material manufacturing processes, which is deployed substantially in productions. The variety of the output product types is greatly attributed to the die part of the extruder because it is one of the essential components that shapes the material. The main purpose of this paper is to create a feasible and efficient design of the extrusion die, which would meet the design requirements and would be more convenient to use as well as have better performance compared to the existing design. In order to obtain adequate results, CAD model of the die bodies were created and simulated in the SolidWorks Plastics and COMSOL software. It is found from the results of the simulation that, proposed design demonstrated better performance in terms of uniformity of the flow at the outlet as well as pressure and temperature distributions.