Abstract: Provided is a vinyl chloride resin composition for powder molding comprising:(1) 100 parts by weight of a vinyl chloride resin powder having an average polymerization degree p of 600 to 3000 and an internal pore volume of 0.20 ml/g or more,(2) 80 to 150 parts by weight of a trimellitic ester having an alkyl group with a principal chain having an average carbon number n of 6 to 9, and(3) 5 to 25 parts by weight of a fine vinyl chloride resin having an average polymerization degree q of 400 to 1300 and a primary grain size distribution of two modes in which a smaller mode falls in a grain size range of 0.1 to 0.4 .mu.m and a larger mode falls in a grain size range of 0.9 to 1.4 .mu.m,wherein the parts by weight L of the trimellitic ester shown in (2), p and n each described above have the relation satisfying an equation (I):5<[{(n-8).times.5+L}/p].times.100<12 (I)This vinyl chloride resin composition is improved in a coldproof property and a thermal degradation resistance.