A method of molding plastics material which comprises the steps of feeding plastics material into an extruder for softening and mixing; extruding the mixed mass in the form of a rod having a diameter of at least 15 mm through an extruder die; charging the extruded mass into a metal mold whose inner walls are provided with grooves to attain the smooth movement of plasticized resin; and compression molding the extruded mass while being plasticized to form a molded product.
