The invention discloses an amino acid-containing condensate steam stripping system and a tail gas treatment method for solving the problems of an existing steam stripping system that a treatment method is complex, system energy consumption is high, corrosion to pipe plates and pipelines is serious and equipment investment is high. The method comprises the steps of correspondingly feeding high temperature condensate, medium temperature condensate and low temperature condensate to a high temperature condensate stripping section, a medium temperature condensate stripping section and a low temperature condensate stripping section of a stripping tower, respectively, reducing the temperature of stripping gas at a stripping tower top to be 85-90 DEG C through an overhead condenser, and feeding into an incineration furnace, wherein the high temperature condensate stripping section is provided with a reboiler, low-pressure steam used as a heat source is used for carrying out steam stripping to the condensate, the medium temperature condensate stripping section and the low temperature condensate stripping section adopt high temperature flash gas generated by the high temperature condensate stripping section as the heat source, and low-pressure nitrogen gas is introduced for gas stripping. The process is simple, the operation can be controlled flexibly, the system stability is good, energy is saved, the consumption is reduced, the corrosion of the steam stripping system can be reduced to the maximum extent and the service life of the equipment can be prolonged.