The utility model discloses a transformer oil mark cleaning device, including the bottom plate, one side fixedly connected with curb plate at bottom plate top, the top fixedly connected with roof of curb plate, the top difference fixedly connected with mobile device and the rotary device of bottom plate, the equal fixedly connected with telescopic cylinder in both sides of mobile device, rotary device's top fixedly connected with backup pad, comprising a base plate, rotary device includes first motor and fixed case, the bottom fixed connection of support and fixed incasement wall is passed through to the bottom of first motor, the utility model relates to a transformer cleaning technology field. This transformer oil mark cleaning device, it needs the manual work to carry out the problem of clearing up to the oil stain on the transformer usually to have solved for to the clearance speed of oil stain on the transformer, improved the effect of clearance, mechanical equipment can carry out comprehensive clearance to the greasy dirt on the transformer.