Third-party custody of banks means that banks, as independent third-party institutions, provide clients with custody services of funds, securities or other assets. This service aims to ensure the safety of customers' assets and prevent them from being misappropriated, stolen or lost. In the financial market, bank third-party custody is widely used in investment fields such as stocks, bonds, funds, futures and options.

The characteristics and advantages of bank third-party custody mainly include:

1. Independence: As an independent third party, the bank has no direct interest relationship with both parties to the transaction, and can ensure the safety and transparency of assets.

2. Security: The bank has high credibility and strict risk control system, which can effectively protect the assets of customers.

3. Professionalism: The bank has a professional custody team and system, which can provide customers with efficient and convenient custody services.

4. Normality: Banks need to follow strict laws, regulations and industry norms to ensure the compliance and transparency of custody services.

The third-party depository of banks is of great significance in the financial market. For investors, bank custody can reduce investment risks and ensure the safety of assets; For financing enterprises, bank custody can enhance investor confidence and improve financing efficiency. Therefore, the third-party custody of banks plays an important role in the financial market.