Advanced oxidation technology for in-situ remediation of contaminated sites can meet the requirements of short remediation cycles of urban contaminated sites in my country and remediation of composite pollutants due to the rapid and high reactivity of chemical reactions. Among the many site restoration and management technologies, in situ chemical oxidation (ISCO) technology has the advantages of short restoration cycle, moderate cost and thorough treatment effect. In recent years, it has been widely favored by scholars and engineers at home and abroad. ISCO technology delivers oxidants to contaminated groundwater and effectively removes pollutants by using the oxidation reaction between oxidants and pollutants, prevents further spread of groundwater pollution and reduces its harm to the groundwater ecological environment. ISCO technology is suitable for most organic pollutants, including chlorinated hydrocarbons, petroleum hydrocarbons, polycyclic aromatic hydrocarbons, etc., so it has broad application prospects. This technology uses advanced nanomaterial technology to prepare highly active nano-oxidizing materials, realize the integration of oxidant and catalyst, and improve the high dispersion and excellent mass transfer capabilities of oxidant in site soil and groundwater. Comparison of commonly used oxidant types for in-situ chemical oxidation technology. The main oxidants commonly used in ISCO include potassium permanganate, ozone, hydrogen peroxide and persulfate. This technology has entered the pilot stage and is waiting to be industrialized. The technical team has long studied contaminated site remediation technology, has reserved a number of advanced oxidation (reagent) technology solutions, and is currently focusing on the development of nano-integrated advanced oxidation (reagent) materials and application technologies. The team has carried out sufficient preliminary preparations for the industrialization of this integrated advanced oxidation (reagent) technology and achieved satisfactory results. Cooperation methods: technology development, patent (implementation) licensing. We look forward to jointly developing new advanced oxidation (reagent) technologies with scientific research institutions/enterprise R & D centers, or building demonstration bases with contaminated site remediation and management companies that have qualified implementation.