The Nickel and Cobalt Testing Center of Jinchuan Group, in collaboration with Gansu Nonferrous Metals Vocational College, studied four superalloys—GH4169, GH2132, GH5605, and GH3600—and established and methodologically validated an integrated system combining ICP-AES, HG-AFS, infrared absorption, inert gas fusion, XRF, and powder physical property testing. This exploration of standardized testing for the chemical composition and physical properties of superalloy powders provides methodological support for quality control of domestically produced superalloy powders. Value for buyers: incoming inspection of superalloy powders often faces inconsistencies between methods and standards; validation of a multi-technique combined testing system helps unify inspection criteria and reduce quality disputes.