The invention provides a low weld crack sensitivity steel plate with the yield strength of 800 MPa grade and a method for manufacturing the same. The chemical components of the low weld crack sensitivity steel plate are as follows: 0.03 to 0.08 weight percent of C, 0.05 to 0.70 weight percent of Si, 1.30 to 2.20 weight percent of Mn, 0.10 to 0.30 weight percent of Mo, 0.03 to 0.10 weight percent of Nb, 0.03 to 0.45 weight percent of V, 0.002 to 0.040 weight percent of Ti, 0.02 to 0.04 weight percent of Al, 0.0010 to 0.0020 weight percent of B, and the balance being Fe and inevitable impurities, wherein Pcm is is less than or equal to 0.20 percent. The method adopts a thermo-mechanical controlled rolling technology and a cooling technology to obtain an organization with an ultra-fine bainite lath as a matrix, which is advantageous for improving the strength, the plasticity and the toughness of the steel plate. The yield strength of the low weld crack sensitivity steel plate is greater than 800 MPa; the tensile strength is greater than 900 MPa; the Charpy impact energy Akv (20 DEG C below zero) is more than or equal to 150 J; and the welding performance is good.