The invention provides a method for producing a steel rail. The method comprises steps of carrying out rolling, cooling and straightening on the steel rail in sequence, wherein section size difference of the steel rail blanket before being straightened and after being straightened can be acquired; and the rolling condition comprises that the section size of the steel rail blanket to be rolled equals to the sum of the section size of the steel rail and the difference. According to the method for producing the steel rail of the invention, on the premise that the equipment investment is not increased, compensation control of the rolling process on geometric dimension changes of front and the end of the steel rail in the straightening process can be realized by optimizing the technical setting of the steel rail rolling process, so that the accuracy of the geometric dimension of the front and end of the steel rail, in particular the steel rail for high speed railway, can be ensured, and the problem of yield loss due to the fact that the straightening process causes out-of-tolerance of the geometric dimension of the front and end of the steel rail is solved.