The invention relates to a method for producing high-strength cold-forged steel containing boron and belongs to the field of metal materials produced in metallurgical industries. The high-strength cold-forged steel comprises C, Si, Mn, Ti, Al, P, S, B and the balance Fe and inevitable impurities. According to the method, the optimal component combination is adopted, so that the hardenability of the cold-forged steel produced through the method is improved, cracks are unlikely to be generated, and the content of boron added into the cold-forged steel is more reasonable. In addition, a 150 mm*150 mm cross section continuous casting machine is used for producing billets, and thus the cost of the cold-forged steel is greatly reduced compared with a steel bloom twice-heating producing process. Meanwhile, due to the fact that the silicon content of the cold-forged steel is high, an obvious sigma 0.2 yield strength step is generated when the cold-forged steel is in use and is beneficial to the use safety of the cold-forged steel.