The invention discloses a high-concentration organic wastewater treatment method, relates to the field of environmental protection, and in particular, relates to high-concentration organic wastewatertreatment. The method comprises the steps: removing COD through Fenton reagent oxidation; neutralizing with sodium hydroxide to remove heavy metals and fluorides; precipitating and removing ammonia nitrogen by a struvite method or an air stripping method; reducing with zinc powder or zinc powder and sulfamic acid to remove total nitrogen; and performing sodium hypochlorite oxidative decoloration.Fenton reagents are equivalently added in three batches for a water body in a wastewater pool, precipitation and filtration are performed twice, the reaction time is prolonged, the COD removal rate can be increased, and the reaction process is safe; aiming at removal of heavy metals and fluorides in the water body, sufficient stirring is needed in the reaction process, and the pH value is strictlycontrolled to be 10.5 in primary precipitation and filtration; ammonia nitrogen removal is determined by adopting the air stripping method and breakpoint chlorination; the requirements of treating target values are met, and the effect is ideal.