Legal analysis: the limitation of action for owing bank loans is actually the limitation of action for civil litigation cases. The limitation of action in civil cases is generally three years. If there are other provisions in the law, the statute of limitations of the civil case shall be determined in accordance with other provisions. The loan owed to the bank is a loan contract dispute, and there is no other law to stipulate its statute of limitations, so the statute of limitations of three years applies. The three-year statute of limitations here starts from the day when the bank knows or should know that the debtor will not repay the debt. It should be noted that if the law has other provisions on the starting time of the limitation of action, it is necessary to calculate the starting time of the limitation of action in this case according to other provisions. Most importantly, if the victim's rights have been damaged for more than 20 years, even if the victim files a lawsuit to claim the rights, the court may no longer accept the request of the parties.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 188 The limitation of action for requesting the people's court to protect civil rights shall be three years. Where there are other provisions in the law, those provisions shall prevail. The limitation period of action shall be counted from the date when the creditor knows or should know that the right is damaged and the debtor knows it. Where there are other provisions in the law, those 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 the time limit upon the application of the obligee.