The utility model discloses an insulation paper aging test device for a power transformer. The insulation paper aging test device comprises an oil tank, a heat radiator and a circulating pump, wherein an oil outlet and an oil inlet are formed in the bottom of the oil tank; the oil tank, the heat radiator and the circulating pump form a circulating channel; an insulation paper support with a cylindrical structure is arranged and fixed in the oil tank through a connecting rod; heating temperature control units are distributed on the surface of the insulation paper support; an oil taking opening used for sampling is formed in the side face of the oil tank. The insulation paper aging test device has the characteristics as follows: the operation is easy, the running status of a solid insulator in the transformer can be simulated, the running temperature of the solid insulator in oil can be increased to accelerate aging, and at the same time, the mathematic relation between the aging state of oil-soluble aging products (the content of furfural in oil) and the aging state of the solid insulator (the degree of polymerization of the insulation paper) can be determined.