Manufacturing method of thin-specification high-strength-structure steel plate with steckel mill

The invention discloses a manufacturing method of thin-specification high-strength-structure steel plates with a steckel mill. The steel plate includes following chemical components, by weight, 0.02-0.10% of carbon, 0.20-0.50% of silicon, 1.10-1.60% of manganese, not more than 0.010% of phosphorus, not more than 0.0050% of sulfur, 0.10-0.60% of nickel, not more than 0.50% of copper, not more than 0.50% of molybdenum, not more than 0.60% of chromium, not more than 0.060% of niobium, not more than 0.040% of vanadium, not more than 0.035% of titanium, not more than 0.0020% of boron, 0.020-0.050% of aluminum and the balance of ferrum and unavoidable impurities. The steel plate is manufactured through smelting and refining, a reasonable controlled rolling and controlled cooling technology and a reasonable thermal-treatment technology. The steel plate is excellent in performances, is 630-780MPa in tensile strength, is 500-600MPa in yield strength, is not less than 18% in ductility, is not more than 0.85 in yield strength ratio, is not less than 100J in low-temperature toughness at -40 DEG C, is excellent in strength-toughness matching and low in yield strength ratio, is excellent in anti-shock performance, is stable in manufacturing technology and is strong in operability of the manufacturing technology.