The invention relates to a method for controlling cooling after a 
forging steel part is forged, and belongs to the field of steel 
forging and heat treatment. The method is characterized in that a forged workpiece is immerged into a uniform-speed 
cooling medium for cooling; a cooling process takes the fact that a non-equilibrium 
state structure is not generated on a surface as a principle and can adopt a cooling mode of cooling to proper temperature and then equalizing the temperature or other cooling 
modes according to the size of a material and a workpiece. The method for controlling cooling after 
forging, which is disclosed by the invention, can solve the problems of rough and large structure, hereditary structures, such as a banded structure, and structure nonuniformity of the traditional forging stock, ensure the rigidity uniformity of the forging stock, impulse the popularization of a dry 
cutting technology, improve the mechanical properties, namely 
anisotropy, 
impact ductility and the like of a product which is subjected to heat treatment, improve the uniformity of a structure which is not subjected to the heat treatment and effectively cooperate with the heat treatment 
deformation control.