The invention discloses low-temperature-resistant hot-rolled angle steel and a production method thereof, and belongs to the technical field of metallurgy. The angle steel consists of the following chemical components in percentage by mass: 0.10-0.15% of C, 0.20-0.50% of Si, 1.3-1.7% of Mn, 0.04-0.06% of V, 0.005-0.015% of Al, less than or equal to 0.01% of N, less than or equal to 0.006% of O, less than or equal to 0.020% of P, less than or equal to 0.010% of S and the balance Fe and inevitable impurities. The production method for the low-temperature-resistant hot-rolled angle steel comprises the following steps: molten iron pre-desulfurization, converter smelting, LF refining, and a continuous-casting and rolling process by a billet continuous casting machine, wherein sulfur content of the molten iron after desulfurization is less than or equal to 0.005wt%. According to the low-temperature-resistant hot-rolled angle steel and the production method thereof, a vanadium micro-alloying process and a steelmaking process are adopted, the control is simple and the alloy recovery rate is stable. The low-temperature-resistant hot-rolled angle steel is good in performance, and has impact energy greater than or equal to 100J at a temperature of (-)40 DEG C.