The invention discloses a production process of a high-strength mining chain wire rod. The production process comprises the following procedures: inspecting a billet; heating the steel billet; descaling by high pressure water; rough and intermediate rolling and pre-precision rolling; water-cooling of an area 1; precision-rolling; water-cooling of an area 2; reducing and sizing rolling; water-cooling of an area 3; spinning; air-cooling; covering; slow-cooling; uncovering; coil-collecting; finishing; packaging; and warehousing to finally obtain the high-strength mining chain wire rod. In the invention, by utilizing a controlled-rolling and controlled-cooling process, process control is carried out on the mining chain wire rod so as to form an F+P structure suitable for processing a chain; the obtained chain wire rod has good comprehensive mechanical properties and can be produced in a chain factory by utilizing a simple process; and the production process has the advantages of low energy consumption, less equipment investment and high production efficiency, thus greatly lowering production cost.