The invention discloses an elastic fireproof metal plate and a manufacturing method thereof, and belongs to the field of metal plates. The method comprises the following steps of: adding aluminum ingots into a melting furnace, heating to melt the aluminum ingots into a liquid state, adding copper silicon iron zinc, natural rubber and ammonium oxide into the liquid-state aluminum ingots, and enabling the liquid-state aluminum ingots to react to form an alloy liquid; adding polysiloxane, urea, benzotrichlorazol, lauryl sodium sulfate, phenylacetic acid, dipentaerythritol, dibutyltin dilaurate, maleic anhydride, methyl isopropyl ketone and a titanate coupling agent into the alloy liquid to obtain a mixture, persevering the heat of the mixture and standing the mixture for 20-30 minutes, and casting the mixture to obtain cast ingots; uniformly annealing cast blocks for 20-30 hours at the temperature ranging from 450 DEG C to 500 DEG C; and a fourth step, heating the cast blocks for 10-12 hours at the temperature ranging from 800 DEG C to 810 DEG C; and cooling the cast ingots in water, carrying out hot rolling on the cast ingots, and cooling the cast ingots, thereby obtaining the elastic fireproof metal plate. Fireproof performance of the elastic fireproof metal plate is obviously improved by adding ammonium fluoride; besides, hardness of the elastic fireproof metal plate can be improved through thermal treatment, so that the elastic fireproof metal plate is prevented from being worn.