The invention provides a foldable mosquito net rack comprising a rack body and a permanent seat which are connected, wherein the rack body comprises two driving rods, two driven rods and one similar U-shaped end rod; the driving rods are pivoted with the driven rods; the driven rods are pivoted with the similar U-shaped end rod; the foldable mosquito net rack further comprises a horizontal shaft, a first worm wheel, a second worm wheel, a second worm, a bottom shell, a front cover and a driving device; the two ends of the horizontal shaft are provided with worms; the horizontal shaft is pivoted with the permanent seat; a rotating shaft is pivoted with a pivot joint rack and fixedly connected with the first worm wheel; the driving rods are fixedly connected with the rotating shaft; the worm wheels pass through through holes so as to be matched with the worms; the second worm and the second worm wheel are pivoted with the bottom shell and the front cover; the second worm wheel is fixedly connected with the horizontal shaft; the bottom shell is detachably connected with the permanent seat; the driving device is in driving connection with the second worm; and when the driving device is operated, the driving rods rotate relative to a base, the driven rods rotate relative to the driving rods, and the similar U-shaped end rod rotates relative to the driven rods, so that folding is realized, and the foldable mosquito net rack is convenient in use and occupies less space while being folded.