The invention provides a treatment method of RT base production wastes. The method is characterized in that nitrobenzene, aniline or a nitrobenzene and aniline mixture is used to dissolve wastes with the phenazine content exceeding 10%, generated in the RT base production process at 30-180 DEG C, a liquid phase obtained after dissolving undergoes crystallization separation at 10-50 DEG C, a solid phase obtained after the separation is used as a raw material for phenazine purification, and a liquid phase obtained after the separation is directly rectified or enters an RT base production device in order to recover aniline, RT base and azobenzene. The method has the advantages of avoiding of low separation method of fusion method treatment of phenazine waste residues, no tedious processes of melt separation or solvent separation, great reduction of the use amount of the solvent, and no influences of new impurities brought in the aniline, RT base and azobenzene recovery process on the stable running of a system.