The invention relates to a method for alleviation of the nodulation degree of a furnace roller and aftertreatment of nodules of the furnace roller. The method is applicable to production of cold-rolled silicon steel and comprises the following steps: 1) strictly controlling the scale of a steel plate used as a hot rolling raw material; 2) controlling the heating temperature of a normalizing furnace; 3) controlling an oxidizing atmosphere; 4) controlling the temperature of a tapped steel plate; 5) controlling the sequence of production operations; 6) grinding the roller regularly; and 7) measuring the diameter of the furnace roller regularly and adjusting the number of revolution of the furnace roller which is changed in diameter after wearing. The method provided by the invention is optimized in process flow and process parameters, and different treatment measures are adopted according to the nodulation situation of the furnace roller, so the nodulation degree of the furnace roller canbe effectively alleviated, the rhythm of production is accelerated, the yield of cold rolled silicon steel is improved, and production cost is lowered.