The invention belongs to the field of physical inspection of metal materials, and relates to metallographic inspection of a wrought superalloy, in particular to metallographic etching agents for the wrought superalloy, and a metallographic structure display method for the wrought superalloy. The etching agents comprise a first etching agent, a second etching agent and a third etching agent. The metallographic structure display method comprises the following steps: carrying out etching in the first etching agent, carrying out etching in the second etching agent, and carrying out electrolytic corrosion in the third etching agent. The metallographic etching agents and the metallographic structure display method provided by the invention have the advantages that highly toxic or dangerous chemical reagents are not used, so that the operation is safe; and a displayed wrought superalloy structure achieves high contrast, and the structure and grain boundaries are clear, so that quantitative metallographic analysis can be conveniently achieved.