Oil-immersed transformer

The invention relates to an oil-immersed transformer, and relates to the technical field of transformers, the oil-immersed transformer comprises a transformer body and a substrate arranged on the bottom side of the transformer body, and the transformer body is provided with a heat dissipation assembly and a monitoring assembly used for oil temperature monitoring. The heat dissipation assembly comprises a plurality of heat dissipation fins arranged on the outer surface of the transformer body; the transformer body is provided with a shielding assembly, the shielding assembly comprises flexible shielding cover cloth and a plurality of fixing plates, the fixing plates are wound around the four edges of the upper side of the transformer body, the outer edges of the fixing plates are connected with the upper edge of the shielding cover cloth, the shielding cover cloth is arranged on the peripheral faces of the cooling fins in a sleeving mode, and the shielding cover cloth is connected with the fixing plates. The f