Choosing a reliable cryptocurrency exchange is an important part of cryptocurrency investment. Here are some suggestions to help you pick a reliable exchange:

1. **Check the ranking and rating of the exchange**: Refer to well-known data platforms such as CoinMarketCap and CoinGecko, which provide detailed exchange rankings and ratings, which can help you quickly understand the status of well-known exchanges around the world.

2. **Check the regulation and license of the exchange**: A reliable exchange should have licenses and registrations in relevant jurisdictions, which helps ensure the legality and standardization of its operations.

3. **Investigate the security measures of the exchange**: Security is an important consideration when choosing an exchange. Understanding whether the exchange has taken security measures such as multi-factor authentication, encrypted storage, strict auditing and monitoring, and whether it has established an asset guarantee fund, etc., are all important means to ensure the safety of your funds.

4. **Study the transaction fees and trading varieties of the exchange**: The transaction fees and trading varieties of different exchanges may vary. You need to choose an exchange with reasonable fees and the trading varieties you need based on your investment needs and budget.

5. **Check the user reviews and reputation of the exchange**: By checking the reviews and reputation of other users, you can learn about the customer service quality, trading experience and other aspects of the exchange, which can help you make a more informed choice.

6. **Try the functions and interface of the exchange**: Before deciding to use an exchange, you can try to register and try its functions and interface. Observe whether the exchange is easy to operate, whether the interface is friendly, whether the transaction is smooth, etc., to ensure that you have a good experience.

Please note that there are high risks in the cryptocurrency market. Investors need to fully understand the market rules and risks before investing, and formulate a reasonable investment strategy. At the same time, stay vigilant to avoid being exploited by criminals and ensure the safety of your funds.