Bank loan refers to an economic behavior that banks lend funds to people in need of funds at a certain interest rate according to national policies and return them within the agreed time limit. Moreover, in different countries and different development periods of a country, the types of loans classified according to various standards are also different. For example, industrial and commercial loans in the United States mainly include ordinary loan limits, working capital loans, standby loan commitments, and project loans. In Britain, industrial and commercial loans mostly take the form of discounted bills, credit accounts and overdraft accounts. According to different classification standards, there are many types of bank loans. For example, 1 can be divided into short-term loans, medium-term loans and long-term loans according to different repayment periods; 2. According to different repayment methods, it can be divided into demand loans, term loans and overdrafts; 3. According to the different purposes or objects of the loan, it can be divided into industrial and commercial loans, agricultural loans, consumer loans and securities broker loans. ; 4. According to the different loan guarantee conditions, it can be divided into bill discount loan, bill mortgage loan, commodity mortgage loan and credit loan. 5. According to the loan scale, it can be divided into wholesale loans and retail loans; 6. According to the different ways of interest rate agreement, it can be divided into fixed interest rate loans and floating interest rate loans, and so on. In the General Rules for Loans 1996 issued by the People's Bank of China in June, loans are classified as follows: (1) self-operated loans, entrusted loans and specific loans. Self-operated loan refers to a loan independently issued by the lender with funds raised in a legal way. The risk is borne by the lender, and the principal and interest are recovered by the lender. Entrusted loans refer to loans provided by clients such as government departments, enterprises, institutions and individuals, and issued, supervised and recovered by lenders (trustees) according to the loan object, purpose, amount, term and interest rate determined by the clients. The lender (trustee) only charges the handling fee and does not bear the loan risk. Specific loans refer to loans granted by wholly state-owned commercial banks with the approval of the State Council after taking corresponding remedial measures for the losses that may be caused by loans. (2) Short-term loans, medium-term loans and long-term loans. Short-term loans refer to loans with a loan term of less than one year (including one year). Medium-term loans refer to loans with a loan term of more than one year (excluding one year) to less than five years (including five years). Long-term loans refer to loans with a loan term of more than five years (excluding five years). (3) Credit loans, secured loans and discounted bills. Credit loan refers to the loan issued by the borrower's credit. Secured loans refer to secured loans, mortgage loans and pledged loans. Guaranteed loan refers to a loan issued by a third party in the form of guarantee stipulated in the Guarantee Law of People's Republic of China (PRC), with the borrower undertaking general guarantee liability or joint liability as promised. Mortgage loan refers to the loan issued with the property of the borrower or a third party as collateral according to the mortgage method stipulated in the Guarantee Law of People's Republic of China (PRC). Pledged loan refers to the loan issued with the movable property or rights of the borrower or the third party as the pledge according to the provisions of the Guarantee Law of People's Republic of China (PRC). Bill discount refers to the loan issued by the lender in the form of purchasing the borrower's unexpired commercial paper.