The loan contract is still valid after it expires, and the parties may sue the people's court to demand the other party to pay back the money, but the expired loan contract has lost the right to win the case. A loan contract is a contract in which the borrower borrows money from the lender, repays the loan at maturity and pays interest. Article 188 of the Civil Code of People's Republic of China (PRC) stipulates that the limitation of action for requesting protection of civil rights from the people's court is three years. Where there are other provisions in the law, such provisions shall prevail. The limitation period of action shall be counted from the day when the obligee knows or should know that the right has been damaged and the obligor knows it. Where there are other provisions in the law, such provisions shall prevail. However, if more than 20 years have passed since the right was damaged, the people's court will not protect it. Under special circumstances, the people's court may decide to extend it according to the application of the obligee. Article 668 of the Civil Code stipulates that a loan contract shall be in written form, unless otherwise agreed between natural persons. The contents of a loan contract generally include terms such as loan type, currency, purpose, amount, interest rate, term and repayment method. Article 188 of the Civil Code of People's Republic of China (PRC) requires the people's court to protect civil rights for three years. Where there are other provisions in the law, such provisions shall prevail. The limitation period of action shall be counted from the day when the obligee knows or should know that the right has been damaged and the obligor knows it. Where there are other provisions in the law, such provisions shall prevail. However, if more than 20 years have passed since the right was damaged, the people's court will not protect it. Under special circumstances, the people's court may decide to extend it according to the application of the obligee. Article 668 of the Civil Code of People's Republic of China (PRC) A loan contract shall be in written form, unless otherwise agreed between natural persons. The contents of a loan contract generally include terms such as loan type, currency, purpose, amount, interest rate, term and repayment method.