The invention belongs to the technical field of waste water treatment, and particularly relates to a method for the resource treatment of dye waste water. The dye waste water generated by a salting-out separation technology firstly adopts an ultrafiltration technology to recover suspension dyes in the waste water; an electro-catalytic oxidation technology is adopted to remove organic matters, ammonia nitrogen and chrominance in the waste water; a reverse osmosis technology is adopted to concentrate water coming out after the electro-catalytic oxidation technology is conducted, and reverse osmosis outlet water is used for a dye synthesis technology, the concentrate liquid is divided into two parts, one part is used for the salting-out separation technology, the other part is used for evaporation desalting in an evaporating technology, the evaporating condensed liquid is recovered to be used for the dye synthesis technology, and evaporated salt is added to the salting-out separation technology. The waste water resource utilization is achieved, materials in the waste water can be recovered, the reverse osmosis outlet water and the evaporating condensed liquid are used for production front end, and the generated reverse osmosis concentrate and the evaporated salt can be recovered to be used for a production 'salting-out' technology.