The invention discloses a transformer and respirator silica gel replacing moving platform. The platform comprises a pedestal. A lower portion of the pedestal is provided with a universal wheel. The pedestal is provided with a lifting device. An upper end of the lifting device is provided with mobile guide rails, a shear fork mechanism and a replacing platform. There are two mobile guide rails. The replacing platform comprises a tool placing plate, a support plate and a fixing plate. The tool placing plate, the support plate and the fixing plate are connected through 4 vertical rods. A bottom of the tool placing plate is provided with a chute which is cooperated with the two mobile guide rails. A slide bar is fixed between end portions of the two mobile guide rails. One end of the shear fork mechanism is slidingly connected to the slide bar and the other end is fixedly connected to the tool placing plate. One side of the support plate is provided with a U-shaped gap I and one side of the fixing plate is provided with a U-shaped gap II. In the invention, when a respirator is replaced, manual support is not needed, and one person can complete replacement of respirator silica gel; through arranging the tool placing plate, a condition that parts are in disorder is avoided so that taking and usage become convenient; and an equipment are is guaranteed to be clean and is not polluted.