Abstract: The preliminary planning is made for the radioactive waste treatment factory based on the plant layout of underground nuclear power plants and the characteristics of the waste sources. The facility to dispose the gaseous and liquid radwastes was located in the nuclear assistant factory. The facility to dispose the concentrated liquid and solid wastes was located in the site of the radwaste treatment facility and built on the ground. The radwaste treatment scheme was established. The occluding, insulating and treating measures for the liquid and gaseous wastes were introduced, as well as the composition of the mobile gassing equipment and the mobile liquid treatment equipment. The released radioactive gas and liquid can be occluded, insulated and treated effectively.