The utility model relates to a high-frequency high-voltage transformer experiment device, and belongs to the technical field of transformer electromagnetic experiment equipment. According to the technical scheme, the high-frequency high-voltage transformer experiment device comprises a vacuum-pumping flange plate (1), a vacuum-pumping pipe (2), an oil filling pipe (3), a fuel tank (4), an upper sealing cover plate (5) and a wire outlet (6); the fuel tank (4) is a deformed cuboid, the periphery of the fuel tank (4) is arc-shaped, and upper sealing cover plate (5) is arranged on the upper part of the fuel tank (4); sealing strips are arranged between the fuel tank (4) and the upper sealing cover plate (5); the upper sealing cover plate (5) is provided with the wire outlet (6); and the vacuum-pumping flange plate (1) is provided with the vacuum-pumping pipe (2) and the oil filling pipe (3), and the vacuum-pumping flange plate (1) is installed on the upper sealing cover plate (5). The high-frequency high-voltage transformer experiment device has the advantages that the electromagnetic interference when the transformer works in high frequency is substantially reduced, the vacuum-pumping and oil filling technology requirements are met, the temperature rise of the transformer is reduced, and the dielectric strength of the transformer is improved.