A polyvinyl chloride resin composition for powder molding having amine resistance and resistance to mold staining, the composition having blended therein, per 100 parts by weight of polyvinyl chloride resin, (a) 0.1 to 10 parts by weight a stabilizer mixture of bartium and zinc carboxylic acid salts each having a melting point not lower than 250°C, the barium and zinc metallic weight ratio being 1:5 to 5:1, and (b) 0.1 to 10 parts by weight of metal perchlorate and/or perchlorate ion type hydrotalcite compound.