本发明提供了一种建筑钢板及其生产方法，属于钢板生产技术领域。该建筑钢板包括如下质量含量的化学成分：0.08-0.14wt％的C、0.08-0.15wt％的Si、0.09-1 .45wt％的Mn、0.015-0.05wt％的Als、0.015-0.06wt％的Nb、0.4-0.8wt％的Cr及0.80-1.85wt％的Ni等，余量为Fe和残留元素。上述钢板的各化学成分组合合理，具有较强的强韧性、抗震性、耐蚀性和耐火性等。其生产方法包括：对钢水进行浇铸，浇铸过程中进行水冷模铸，随后进行大压下轧制、预淬火处理、亚温淬火处理和回火处理。该方法简单易操作，有利于改善钢板质量，提高钢板的性能。

The invention provides a construction steel plate and a production method thereof, belonging to the technical field of steel plate production. The building steel plate contains the following chemical components of mass content: 0.08-0.14wt % C, 0.08-0.15wt % Si, 0.09-1.45wt % Mn, 0 85wt % Ni, Fe and residual elements. The chemical composition of the steel plate is reasonable, and it has strong toughness, shock resistance, corrosion resistance and fire resistance. The production method includes: casting molten steel, water-cooled die casting during the casting process, followed by large pressure rolling, pre-quenching treatment, moderate temperature quenching treatment and temper treatment. The method is simple and easy to operate, which is beneficial to improve the quality and performance of steel plate.