The evaluation criteria and methods for the dynamic performance of vehicles and track structures form the foundation of dynamic simulation analysis. This chapter first introduces the primary evaluation indicators and standards for vehicle dynamics, as well as the dynamic performance evaluation criteria for track, bridges, and other trackside structures in different countries. Furthermore, in response to the research needs of high-speed railway track dynamics, this chapter analyzes the applicability of ride comfort indicators and proposes corresponding evaluation methods based on different research subjects and objectives in track dynamics.