The testing standards of the mechanical properties of corrugated paperboard, honeycomb paperboard and corrugated composite paperboard were studied in order to have a comprehensive understanding of the mechanical properties test methods of sandwich structural paperboard for the relevant personnel. The testing principles of various mechanical properties were explained, and the differences among the test standards were analyzed. At the same time, the relevant research results for improving test device of the shear performance for the sandwich structure were introduced. Through analysis, the various standards of corrugated paperboard, honeycomb paperboard and corrugated composite paperboard had different requirements, and standard test methods should be improved and updated, the mechanical property test of the three kinds of sandwich paperboard should adopt appropriate test standards and methods based on the application environment.