The invention discloses a compound heat treatment process of an industrial and mining tool material and belongs to the technical field of industrial and mining mold tools. The compound heat treatment process comprises the following steps: processing a mold or tool part according to conditions; coating the surface with fused salt TiC; preparing a stainless steel crucible; preparing titanium sponge, BaCl, KCl and TiF; temperature: raising the temperature to 650 DEG C by a salt bath at a first phase and keeping the heat for 3h; raising the temperature to 950 DEG C at a second phase; properly keeping the heat. The process is suitable for surface enhanced compound heat treatment of each mold. After fine machining is finished, the mold is washed to remove oil and is purified; the mold is added into the bath according to specific requirements, and the temperature and the heat preservation time are controlled, and a certain wear-resisting hardened layer can be formed. Aiming at the problems of a shield tool in the prior art that the wearing resistance is poor and the rigidity is poor, the rigidity of the industrial and mining tool material can reach 3600HV; the friction coefficient is low, and the vibration-resisting performance and the wear-resisting performance are excellent; the service life of the mold can be improved by more than 5 times.