Fireproof heat preservation base plate with specific arrangement

The utility model discloses a fireproof heat preservation base plate with specific arrangement, which comprises a base plate, a fireproof layer, a heat preservation layer and a connecting device, the connecting device comprises a first limiting hole, a first limiting groove, a limiting column and a limiting block, one side of the outer wall of the base plate is provided with the first limiting hole, the first limiting hole is arranged in a rectangular shape, and the first limiting groove is arranged in the first limiting hole. First limiting grooves are symmetrically formed in the other side of the outer wall of the base plate, limiting columns are connected into the first limiting holes in a nested mode, one sides of the limiting columns are connected to the outer wall of the fireproof layer, limiting blocks are movably connected into the first limiting grooves, and one sides of the limiting blocks are connected to the outer wall of the heat preservation layer; the fireproof layer and the heat preservation l