Marine low-temperature steel plate with excellent fire work performance, and manufacturing method thereof

The invention discloses a marine low-temperature steel plate with an excellent fire work performance, and a manufacturing method thereof. The marine low-temperature steel plate with the excellent firework performance is prepared from the main chemical components in percentage by mass: 0.04 percent to 0.08 percent of C, 0.15 percent to 0.25 percent of Si, 0.80 percent to 1.80 percent of Mn, less than or equal to 0.012 percent of P, less than or equal to 0.002 percent of S, 0.045 percent to 0.070 percent of Als, less than or equal to 0.0040 percent of N, 0.005 percent to 0.020 percent of Ti, and the balance Fe and inevitable impurities. The invention further provides a production method of the low-temperature steel plate. The production method of the low temperature steel plate adopting a thermal mechanical control processing (TMCP) process for producing, and comprises casting blank heating, two-stage controlled rolling and controlled cooling. The steel plate provided by the invention has a favorable combinatio