In cryptocurrency trading, spot trading is fundamental, involving the direct buying and selling of cryptocurrencies, which is low-risk but has limited returns. Leverage trading amplifies profits through borrowed funds, but it also magnifies risks, and if judgments are incorrect, one could lose everything. Contract trading is based on predicting the future prices of cryptocurrencies, allowing for both buying and selling, enabling profit from both upward and downward movements. However, the complex mechanisms and high leverage characteristics further escalate risks. In summary, spot trading is suitable for conservative investors, while leverage and contract trading are more appropriate for risk-tolerant and experienced traders. When choosing, one should consider their own goals, experience, and risk preferences.