The invention discloses integral-type underground high-voltage transformation equipment, comprising a box body and high-voltage transformation equipment arranged in the box body, wherein, the box body arranged in a overall cement pond, the top of the cement pond is covered by a precast cement slab which is provided with a lifting groove, the box body is of an all-welded closed structure, the side wall of the box body is provided with an incoming cable and an outgoing cable, the joint of the incoming cable and the outgoing cable and the box body is sealed through sealing parts, the top of the box body is provided with an air inlet pipe and an air outlet pipe in a sealing way, the parts of the air inlet pipe and the air outlet pipe which enter the box body have altitude difference, a waterproof cap is arranged above the air inlet pipe and the air outlet pipe, and an antenna is arranged above the waterproof cap; the advantages of the invention are as follows: the invention with simple structure, good sealing and cooling effect not only can be used underground or underwater, such as rivers, lakes, ponding and other complex environments, but also can be used for remotely controlling the transformation equipment in the box body through the antenna, and does not occupy ground resources.