In order to avoid the defects such as “blue brittleness” and determine the proper warm forming temperature, the influences of different forming temperature on the properties of QP980 steel plate were investigated, and the microstructure and mechanical properties were studied by optical microscope, scanning electron microscope, tensile test and other methods. Then, the anisotropy analysis was carried out on QP980 steel plate. The results show that in the direction parallel to the plate rolling (0°), QP980 steel plate has both high strength and plasticity when stretching at 300 ℃, and the strong plastic product can reach 38.526 GPa·%. The strong plastic product in the directions of 45° and 90° to the rolling direction is obviously lower than that in the 0° direction, but the material anisotropy is the weakest at 300 ℃. This is due to the precipitation of supersaturated carbon in α-solid solution increases the ferrite content, which is conducive to the coordination of hard-phase deformation and enhance the plasticity of material, and the lower bainite transformation occurs at this temperature and the precipitation of transition-type granular η-Fe2C improve the strength of material. Comprehensively, QP980 steel plate has the optimal forming properties at 300 ℃.