The invention provides a water spraying fireproof door capable of delaying fire, including a frame, a rectangular bucket, bakelite plates, an evaporation cavity, an evaporation liquid, a water pipe, water, an evaporation box, an air pipe, a balancing weight, a rubber sheet, a clamping block, a gasket, a sheet, an air outlet, a nozzle and a protrusion; the rectangular bucket is seamlessly welded atthe bottom of the inner wall of the frame; two bakelite plates are adhered to the inner wall of the rectangular bucket through structural adhesives; and the evaporation cavity is formed in the rectangular bucket, the evaporation box is embedded and welded to one side of the frame, the air pipe is seamlessly embedded into the top of the evaporation box, the evaporation cavity and the evaporation box are filled with evaporation liquid with uncertain shapes, the water pipe is embedded into the frame, the rectangular bucket is filled with water with uncertain shapes, and the balancing weight is arranged between the bakelite plates in a seamless sliding mode. The water 7 in the rectangular bucket 2 can be rapidly sprayed out of the frame 1 through the water pipe 6 and the nozzle 16 when the frame 1 encounters a fire, so that the fire spreading function is greatly slowed down, and precious time is gained for people to escape.