The invention discloses a method for recycling phosgene in a continuous production process of toluene di-isocyanate, comprising the following steps: importing a gas stream rich in phosgene, hydrogen chloride and less impurities, which is generated in a preparation process of the toluene di-isocyanate, to a first phosgene absorption tower and leading in inert organic solvent to absorb; lifting pressure of the gas streams exhausted from the top of the first phosgene absorption tower by a compressor, lifting the pressure of part of tower bottom absorption liquid of the first phosgene absorption tower by the tower bottom liquid pump and then entering a second phosgene absorption tower, importing another gas stream rich in phosgene, hydrogen chloride and less impurities to the second phosgene absorption tower and supplementing the inert organic solvent to keep absorbing; reusing the phosgene inert organic solvent solution acquired from the bottom of the second phosgene absorption tower in the continuous production process of the toluene di-isocyanate. The method can obviously decrease the loading of the compressor, thereby reducing the cost on investment, operation and maintenance, improving the operation stability, and achieving the purpose of recycling the phosgene at a lower cost.