To provide a die for extrusion molding which precisely makes the wall thickness, in the width direction, of an extruded molding uniform and an extrusion molding machine.

The die 31 or extrusion molding comprises a manifold part 32 and a lip part 41 communicating with the end part of one side of the manifold part 32. A plurality of resistors 38 are mounted, in a freely inserting manner, in a flow passage 45a on the lip part 41 side of the manifold part 32. That is, the resistors 38 are arrnaged, in a cross-stitch fashion, in the width direction of an upper half 33 of the die 31 and are stored in a recessed part 33a. Each of the resistors 38 is of an almost columnar shape with an O ring 40 fitted to the outer peripheral face. One of the ends of the resistor 3 is threaded 38a and is screwed into a threaded hole 33b formed in the upper half 33. Consequently, the tip of the resistor 38 is inserted into or made to recede from the flow passage 45a by forwardly rotating the head of the threaded part 38a or reversing it with the help of a driver or the like.