Transformer oil level detector

The utility model discloses a transformer oil level detector, which relates to an oil level detector, wherein one side of the middle portion of a rod body (2) is connected with an upper end head of a reversed L-shaped rod to form an h-shaped structure, a plurality of fixed length oil level detection segments (4) are arranged on the lower end of the rod body (2), ring-shaped depressions (5) are arranged between every two fixed length oil level detection segments (4), and frosted surfaces (6) are arranged on the outer surfaces of the fixed length oil level detection segments (4). The transformer oil level detector can accurately obtain the oil level of a transformer when being inserted into the transformer by arranging the fixed length oil level detection segments on the lower end of the rod body.