PROBLEM TO BE SOLVED: To provide a medical radiation sterilization corresponding vinyl chloride resin composition which is excellent in extrusion moldability, has excellent discoloration resistance to radiation sterilization, and has no problem in an elution test required for a medical material.SOLUTION: A medical radiation sterilization corresponding vinyl chloride resin composition contains a component (a) of 100 pts.mass of a vinyl chloride resin, and a component (b) of 20-250 pts.mass of a tetrahydro phthalic acid diester plasticizer.