The invention relates to a method for improving precise control of a refining worker over the molten steel temperature and belongs to the technical field of steel melting control. According to the technical scheme, the method is characterized in that the out-station temperature of LF refined molten steel is automatically calculated through an automatic temperature calculation model; the model is built through the processes that according to the three-stage layers of the steel grade, a continuous casting machine and the continuous casting number, on the basis of an upper limit value and a lowerlimit value of the standard out-station temperature and by combining the process that three sets of parameters of the tundish condition, the residual casting molten steel recycling condition and theto-be-cast time of the molten steel are input by the refining worker according to the actual production condition and converted into variables of the corresponding layers, the upper limit value and the lower limit value of the out-station temperature of the LF refined molten steel are calculated finally; and the refining worker only needs to conduct control operation according to the temperature of the LF refined molten steel automatically calculated in the model. The method for improving precise control of the refining worker over the molten steel temperature has the beneficial effects that areasonable temperature scheme of the refining process is built, and the temperature control level of the refined molten steel is improved, so that the qualification rate of controlling the tundish temperature is increased, the constant casting speed in continuous casting is guaranteed, and the molten steel quality is improved.