The invention discloses a method for recovering pentane diamine through steam stripping from a solid phase containing the pentane diamine. The method is characterized in that hot water vapors are usedfor contacting the solid phase containing the pentane diamine, the pentane diamine in the solid phase is extracted through the water vapors, an aqueous solution containing the pentane diamine or thewater vapors containing the pentane diamine are obtained, and then purification is further conducted to obtain the pentane diamine or pentane diamine dicarboxylate; and meanwhile, residual solid slagcan be recycled or highly utilized. The method has the beneficial effects that one-step separation of the pentane diamine from salt, pigment and protein can be realized, the recovery rate is up to 98%, the recovered pentane diamine is high in purity, chromatographic purity can be up to 99.5%, and the recovered pentane diamine can be directly used for subsequent distillation or salting with dicarboxylic acid to prepare a nylon monomer.