A method for producing a light oxidation annealed plate on a continuous annealing production line belongs to the technical field of metallurgical plate production and is used for solving the problem of producing the light oxidation annealed plate with even oxidation layer and stable product quality on the continuous annealing production line. The technical scheme in the invention comprises the steps of preheating, heating, soaking, spray air-cooled oxidation and the like, wherein the spray air-cooled oxidation step is finished at the cooling section of an annealing furnace, the plate temperature of a band steel entering into the cooling section is 700+/-20 DEG C, a spray air-cooled blower at the head part of the cooling section blows nitrogen gas, a spray air-cooled blower at the middle part of the cooling section blows mixed gases of nitrogen gas and compressed air, a spray air-cooled blower at the tail part of the cooling section blows nitrogen gas, and the plate temperature of the band steel entering into the spray air-cooled blower in the middle is 600-650 DEG C. The invention broadens the existing product structure of the continuous annealing production line, is favor of improving enterprise market competitiveness, and creates considerable economic benefit for enterprises while satisfying various requirements of users.