The invention belongs to the technical field of hot rolling automatic control, and in particular to a method for correcting a temperature measured value for a hot rolling process. The method comprises the steps of firstly collecting production data of historical rolled pieces in the hot rolling process; performing cluster analysis on the production data of the historical rolled pieces to obtain a classic working condition of the historical rolled pieces; performing working condition matching on a current rolled piece and the historical rolled pieces according to the production data of the historical rolled pieces and the current rolled piece; then performing data fusion to correct a temperature measured value of the current rolled piece so as to obtain a corrected temperature measured value of the current rolled piece. By the hot rolling process temperature measured data processing method, in a hot rolling method, disclosed by the invention, the influence of site environment causal factors on the accuracy of the temperature measured value can be eliminated, and an accurate corrected temperature measured value is obtained.