金库，是指金融机构存放现金、有价证券、重要凭证、金银等的库房。金库分为发行库和业务库两种，其中的发行库是指人民银行代国家保管发行准备基金的金库，业务库是指银行为办理日常现金收付需要设置的备用现金保管库。由于金库中储存着大量的现金、金银和有价证券，所以金库 Vault, refers to the financial institutions to store cash, securities, important documents, such as gold and silver warehouse. The vault is divided into two types: the issue bank and the business bank. The issue bank refers to the vault of the People’s Bank of China on behalf of the State for keeping the issuance of prepaid funds. The bank of business refers to the standby cash vault that banks need to set up to handle routine cash receipts and payments. As the treasury stores a lot of cash, gold and silver and securities, so treasury