The invention provides an X80 hot rolling steel plate used for a high-obdurability spiral hidden arc welded tube and a production method thereof, which belong to the technical field of steel rolling. The X80 hot rolling steel plate comprises the following compositions in weight percentage: 0.03 to 0.08 weight percent of carbon, 0.10 to 0.25 weight percent of silicon, 1.60 to 1.95 weight percent of manganese, 0.09 to 0.11 weight percent of niobium, 0.020 to 0.030 weight percent of vanadium, 0.010 to 0.020 weight percent of titanium, 0.10 to 0.30 weight percent of molybdenum, 0.10 to 0.30 weight percent of copper, 0.10 to 0.30 weight percent of nickel, 0 to 0.30 weight percent of Cr, less than or equal to 0.018 weight percent of phosphor, less than or equal to 0.003 weight percent of sulfur, less than or equal to 0.006 weight percent of nitrogen, 0 to 0.0005 weight percent of boron, less than or equal to 0.0003 weight percent of hydrogen, and the balance being ferrum and unavoidable trace impurities. The production method comprises the following steps: heating the compositions at a temperature of between 1,150 and 1220 DEG C; stopping rough rolling at a temperature of between 1,020 and 1,080 DEG C; stopping fine rolling at a temperature of between 800 and 840 DEG C; coiling the rolled steel sheet at a temperature of between 400 and 480 DEG C; and performing fine rolling according to the compression ratio, that is the thickness of an intermediate billet to that of finishing outlet is more than or equal to 3. The X80 hot rolling steel plate is particularly suitable to be used in a gas pipeline with high pressure, long distance and large aperture.