1. According to Baidu education information query, the definition is different: overdraft means that the account holder has negative assets, but can pay interest for a certain period of time. For example, the overdraft function of a credit card is to use the funds within the credit limit first, and then repay them within the interest-free period, while the loan refers to applying for a certain amount of funds from a financial institution, and the interest is calculated from the date of borrowing.

2. Different purposes: overdraft is mainly for facilitating payment and providing short-term capital turnover, while loan is for financing and solving medium and long-term capital needs.