The invention relates to a steel sheet used for low-carbon Grade 610MPa high-strength pressure containers, and a production method thereof. The invention belongs to the technical field of low-alloy wide heavy plates. Chemical components in the mass percent are as follows: 0.05 percent to 0.09 percent of C, 0.25 percent to 0.45 percent of Si, 1.20 percent to 1.40 percent of Mn, 0.035 percent to 0.045 percent of Nb, 0.010 percent to 0.020 percent of Ti, 0.20 percent to 0.30 percent of Cu, 0.25 percent to 0.55 percent of Cr, 0.25 percent to 0.30 percent of Ni, and the rest is Fe; the thickness of the steel sheet is 10mm to 50mm; the micro tissue of the steel sheet is ferrite + bainite tissue, and the grain size is 9.5 to 11. The steel sheet is prepared through controlled rolling and cooling. The production method has the advantages that the produced steel produced steel sheet has greatly improved integrated performance than conventional steel sheets with the same strength grade: the yield stress can be stabilized to be above 460MPa, the tensile strength is stabilized to be above 570MPs, and toughness of the steel sheet at 40 DEG C below zero of low temperature reaches above 100J, and the welding adaptability of the steel sheet is excellent.