Abstract: Aiming at the problems that HRB400E reinforced bars have a relatively high manganese(Mn) content and the finished products are prone to surface red rust when adopting the traditional process of high-temperature finishing rolling plus water quenching cooling after rolling, this paper optimized the temperature regime of the rolling process specifically, controlling the rolling start temperature at 960-1 000 ℃, the temperature entering the finishing rolling mills at 830-850 ℃, the temperature entering the reducing mill at 830-850 ℃, and eliminating water quenching cooling before the bars are sent to the cooling bed, and the corresponding production experiments are carried out.The results show that the produced ϕ14 mm HRB400E reinforced bars achieve a grain size of Grade 11, a yield strength of 452 MPa, a tensile strength of 655 MPa, and a total elongation at maximum force of 14.5%. Moreover, the iron oxide scale on the bar surface is dense and intact without red rust, and the mass fraction of Mn can be reduced by 0.1%. This study provides a basis for the green and low-carbon production of HRB400E reinforced bars as well as the improvement of their mechanical properties and surface quality.