Long-term EV Poker Strategy is one of the core mental models in Texas Hold'em, determining whether a player can achieve consistent profitability. Through the concept of Expected Value (EV), players should evaluate each decision based on long-term average returns, rather than short-term results. This article uses real-world hand analysis to explain how to distinguish between correct decisions and short-term wins and losses, and analyzes the impact of volatility on outcomes. When players can develop a long-term EV mindset, focusing on the quality of decisions rather than the results, they will achieve stable and consistent profitability.