The utility model discloses a staying structure of a long and circular drying type transformer body. The transformer body comprises an iron core column, a high voltage coil and a low voltage coil, wherein the high voltage coil and the lower voltage coil are arranged on the iron core column in a sleeving mode and are arranged in a coaxial layer type with the low voltage coil on the inner side and the high voltage coil on the outer side. The staying structure comprises six first insulation parts evenly distributed between the lower voltage coil and the iron core column, and six second insulation parts evenly distributed between the low voltage coil and the high voltage coil. Each first insulation part comprises a first silicone rubber tube and a first bakelite screw rod connected in the first silicone rubber tube in an insertion mode, and each second insulation part comprises a second silicone rubber tube and a second bakelite screw rod connected in the second silicone rubber tube in an insertion mode. The staying structure of the long and circular drying type transformer body is simple in structure, the high voltage coil and the low voltage coil can be assembled to have certain flexibility and be capable of being completely stayed, the requirement for vibration resistance of the transformer body can be improved, and the transformer can be used on harsh occasions.