In forex trading, leverage can magnify the gains of a trade, but it can also increase risk. When choosing a currency pair with high leverage, the following currency pairs are generally considered to have high liquidity and are frequently traded in the forex market, so high leverage can be used: 1. **EUR/USD (Euro/US Dollar)**: This is one of the most liquid currency pairs and usually has a low spread. 2. **USD/JPY (US Dollar/Japanese Yen)**: Also widely traded and has high liquidity. 3. **GBP/USD (British Pound/US Dollar)**: Although more volatile, it is also a popular choice. 4. **AUD/USD (Australian Dollar/US Dollar)**: Also has good liquidity in the forex market. 5. **USD/CHF (US Dollar/Swiss Franc)**: One of the relatively stable currency pairs. Please note that while high leverage may bring greater potential gains, the corresponding risks will also increase. Therefore, before engaging in forex margin trading, it is recommended that you conduct sufficient research and ensure that you understand all the associated risks. At the same time, reasonable fund management and risk control are the key to successful trading.