To provide a method which can produce a hot-working tool having the same grade properties of toughness and heat checking resistance as a hot- working tool (the tool used in the hot-state) produced by forking a steel material produced by hot-working a steel ingot, even in the case of producing from a cast-formed body.

After melting a steel containing by wt.% of 0.3-0.4% C, ≤1.5% Si, 0.3-1.5% Mn, 5.0-7.0% Cr, ≤4.0% Mo, 0.5-2.0% V and further, if necessary, one ore more kinds among ≤2.5% Ni, ≤2.5% W and ≤2.0% Nb and the balance Fe with impurities, the molten steel is cast to make the cast-formed body. After applying a solid-solution treatment to this cost-formed body in the austenizing temp. range, a spheroidizing annealing or a low temp. annealing is executed to fine the crystal grains and if necessary, the working or grinding, polishing, etc., is executed and thereafter, a quenching and a tempering are executed.