The arbitrage trading strategy #套利交易策略 is a way to obtain low-risk profits through price differences between different markets or currencies. There are three common types: first, cross-platform arbitrage, buying low and selling high on different exchanges; second, triangular arbitrage, utilizing inconsistencies in currency exchange rates within the same platform, such as forming a closed loop arbitrage with USDT-ETH-BTC-USDT; third, time arbitrage, positioning in advance when there is a delay in information dissemination. Although arbitrage appears to be risk-free, it also faces real challenges such as transfer delays, fees, and slippage, requiring cautious operation.