Humidity-adjustable ring main unit and method for preventing condensation dew from being generated by humidity-adjustable ring main unit

The invention discloses a humidity-adjustable ring main unit and a method for preventing condensation dew from being generated thereof.The humidity-adjustable ring main unit comprises a ring main unit body, the top of the ring main unit body is fixedly connected with a waterproof cover, the top end of the interior of the ring main unit body is fixedly connected with a bead condensation preventing device, and the two sides of the interior of the ring main unit body are both fixedly connected with filtering devices; according to the scheme, water molecules entering the cabinet body box are influenced by electronic elements in the cabinet body box and are heated to generate water vapor to rise, so that moist gas is conveniently discharged, the humidity of the cabinet body box is conveniently adjusted, and meanwhile, the influence of the external environment on the humidity of the cabinet body box is reduced; according to the invention, generation of hydrogel beads in the cabinet body box is prevented, the interi