The invention relates to a flue gas wet-type oxidation denitration and resource utilization method which comprises the following steps of: leading the glue gas containing NOX into an acid ferrous iron solution; absorbing NOX at 0-100 DEG C to generate a dark brown mixed solution consisting of nitroso ferrite, nitric acid and nitrous acid to finally realize the flue gas denitration processing; and adding an oxidant into the denitration absorption liquid so that the nitrogen dioxide is discharged and dissolved in water, ammonia water, potassium hydroxide or sodium hydroxide solution to generate nitric acid, ammonium nitrate, potassium nitrate, sodium nitrate and the like so as to realize resource utilization.