The invention discloses 440 MPa class punching steel and a production method thereof. The 440 MPa class punching steel comprises, by mass percent, smaller than or equal to 0.0050% of C, smaller than or equal to 0.50% of Si, smaller than or equal to 0.8% of Mn, 0.050%-0.10% of P, smaller than or equal to 0.010% of S, 5 ppm-15 ppm of B, smaller than or equal to 30 ppm of N, 0.020%-0.050% of Als, 0.01%-0.05% of Ti, 0.03%-0.06% of Nb and the balance Fe and inevitable impurities. According to the punching steel, Nb and Ti are used for fixing interstitial atoms C and N in the steel, meanwhile, a good grain refining effect of Nb is utilized, good mechanical performance and good forming performance are achieved, the tensile strength is 440 MPa or above, ageing characteristics do not exist, and the cost is low. According to the method, improved component design is adopted, and the high-strength steel is produced by controlling technological parameters of hot rolling, cold rolling, annealing, flattening and the like; and the method has the beneficial effects that the implementation difficulty is low, the cost is relatively low, the production process is stable, and the performance of finished products is good.