The invention provides a hot forming steel plate and a production method thereof. The hot forming steel plate comprises the following chemical components in mass percent: 0.18 to 0.23 percent of C, 0.10 to 0.25 percent of Si, 1.0 to 1.3 percent of Mn, smaller than or equal to 0.015 percent of P, smaller than or equal to 0.01 percent of S, 0.01 to 0.05 percent of Ti, 0.0010 to 0.0035 percent of B,0.10 to 0.30 percent of Cr, 0.0015 to 0.0025 percent of La, and the balance of Fe and inevitable impurities. Through the technical scheme and the adding of rare earth La as an alloy element, on the one hand, impurities in steel can be changed, the form of the impurities can be improved, and the purity of the steel can be improved, and on the other hand, the starting temperature and final temperature for martensite transformation can be changed, the quantity of residue austenite in the steel can be reduced, a martensite fine structure can be obtained, and the microstructure morphology of the steel can be changed.