In a narrow sense, this usually means that you borrow money from the bank. Some conditions can not meet the requirements of the bank or the loan amount given by the bank is too low. At this time, you need a guarantor to guarantee you, so that the bank can lend you money with confidence. This guarantor generally refers to the guarantee company, of course, there are also individuals, but very few. When the guarantee company guarantees for you, the guarantee company also bears huge risks, so you must provide counter-guarantee for the guarantee company with collateral, such as your guarantee company.