Precious metal trading losses are often caused by execution rather than analysis. This article sorts out the emotional traps: chasing ups and downs, taking profits too early, retaliatory trading, overconfidence and anchoring effect; proposes a pre-decision method: clarify entry stop loss and target price before trading, use stop loss, stop profit and limit price orders to solidify the rules into automatic execution, record emotional states through review to identify behavioral inertia, so that decisions can be completed when calm rather than hastily decided in the market, and help traders establish stable trading habits.