The invention discloses a production method of high straightness super-strength steel. A steel production process route comprises the following steps: pretreatment of molten iron, converter smelting,LF external refining, VD vacuum treatment, continuous casting, heating, rolling, straightening, quenching, tempering, finishing, performance inspection, and flaw detection. The high straightness super-strength steel is characterized by being prepared from the following chemical components in percentage: 0.15 to 0.20 percent of C, 0.15 to 0.35 percent of Si, 1.0 to 1.50 percent of Mn, smaller thanor equal to 0.012 percent of P, smaller than or equal to 0.003 percent of S, 0.010 to 0.030 percent of Nb, 0.015 to 0.040 percent of V, 0.010 to 0.025 percent of Ti, 0.020 to 0.045 percent of Als, 0.040 to 0.60 percent of Cr, 0.10 to 0.30 percent of Mo, 0.20 to 0.50 percent of Ni, 0.0008 to 0.0025 percent of B, smaller than or equal to 0.60 percent of CEV and the balance of Fe and inevitable impurities. The super-strength steel has the characteristics that the production thickness is 6 to 25 mm, the width is 1,500 to 3,800 mm, the yield strength of a steel plate is greater than or equal to 1,100 MPa, the tensile strength is greater than or equal to 1,200 MPa, the elongation percentage is greater than or equal to 11 percent, the impact work at -40 DEG C below zero is greater than or equal to 50 J and the straightness in any direction of the steel plate is smaller than or equal to 3 mm/m.