Persulfate is widely used in sewage treatment because of its excellent properties.The research progress of advanced oxidation technology based on sulfate radical is reviewed,and the practical application of this technology in the treatment of wastewater and domestic sewage containing organic pollutants or heavy metal ions is introduced in detail.The advantages and disadvantages are briefly discussed,and the existing problems and prospects are analyzed in combination with the current research status of advanced oxidation technology of persulfate.