It is not difficult to get started with precious metals trading, but the threshold for knowledge is not low. This article uses the shortest possible length to explain four core pieces of knowledge: the double-edged sword attributes of leverage and margin, contract specifications and profit and loss calculations, trading periods with the most liquidity, US dollar interest rate inflation and geopolitical price-driven logic, and lists five common traps: only looking at publicity without checking supervision, being carried away by high leverage, credulously believing in promises of high returns, ignoring the gap between simulations and real offers, and chasing orders emotionally, to help novices establish an understandable and controllable trading foundation.