The invention discloses a transformer balancing device for a distributed new energy power distribution network, and relates to the field of transformers. In view of the problem that the increase in internal heat of an existing transformer causes damage to internal electrical components, the following scheme is put forward, namely, the transformer balancing device comprises a transformer body and amounting plate, symmetrically-arranged cooling fins are installed on the two sides of the transformer body, the bottom end of the transformer body is connected with a base, a sliding groove is formedin the top end of the mounting plate, two symmetrically-arranged sliding blocks are connected in a sliding manner into the sliding groove, and an adjusting rod is rotationally mounted between the inner walls of the two sides of the sliding groove. According to the invention, transformers with different sizes can be mounted in a balanced manner, buffer protection can be provided for transformers,and dust on a filter plate and an electrostatic adsorption plate can be removed. Therefore, the ventilation efficiency of the filter plate can be improved, the heat dissipation efficiency can be improved, the balance of heat production and heat dissipation can be achieved as much as possible, and normal service life of electrical components in the transformer is guaranteed.