The invention provides a treatment method of wastes of radioactive techniques. The treatment method at least comprises the following steps: putting PVA product wastes with the surface contact dose rate of less than 2mSv/h generated by a nuclear power plant in water, and performing heating treatment to dissolve the PVA product wastes, thereby obtaining a PVA water solution; adding a Fenton reagentinto the PVA water solution to enable oxidative degradation of PVA, thereby obtaining a degradation solution; performing filtration treatment on the degradation solution to remove insoluble substancesof which the particle size is greater than 0.25 mu m, and performing heating oxidation treatment on the filtrate so that the radioactivity concentration of the filtrate is less than or equal to 1 MBq/m<3>, the COD is less than or equal to 100mg/L and the BOD is less than or equal to 30mg; and collecting the gas emitted by the heating oxidation treatment, and performing catalytic oxidation treatment on the gas. The treatment method has the advantages of simple technique and low energy consumption, is beneficial to energy saving, emission reduction and environment protection, and avoids the accumulation of PVA product wastes in the nuclear power plant; and the obtained product is environment-friendly.