The invention provides a steam turbine impeller production and manufacturing process. The steam turbine impeller production and manufacturing process adopts the following steam turbine impeller production and manufacturing device, the steam turbine impeller production and manufacturing device comprises a base, an adjusting unit and an executing unit, linkage grooves are formed in the right side ofthe upper end of the base in a front-and-back symmetry mode, the adjusting unit is slidably arranged in the linkage grooves, and the executing unit is installed at the upper end of the base. According to the steam turbine impeller production and manufacturing process, firstly, the problems that most of blades are mounted one by one during production and processing of an existing impeller, and thedistance between the blades cannot be effectively adjusted, so that errors exist during blade mounting, repeated calibration is needed, and unnecessary workload is increased are solved; and secondly,the problems that blades and an annular frame are generally clamped and fixed during production and machining of the existing impeller, however, due to the fact that the blades are prone to falling off in a clamping mode, potential safety hazards exist, and the cost is wasted are solved.