Legal analysis: If there is other evidence, such as bank transfer and testimony of other witnesses, you can also sue. You can apply to the court for pre-litigation property preservation. Property preservation before litigation is to seal up the other party's bank account, house, car and other property to prevent the other party from transferring the property. If the debtor fails to repay the loan, he can bring a lawsuit to the court. If there is no debit note or debit note, it is not enough to prove the bank transaction, and other evidence or witness testimony is needed to reinforce it. If the court decides that the loan relationship between the two parties is established, the creditor may apply for enforcement of the court decision within 2 years.

Legal basis: Article 101 of the Civil Procedure Law of People's Republic of China (PRC), if an interested party fails to apply for preservation immediately due to an emergency, which will cause irreparable damage to his legitimate rights and interests, he may apply to the place where the preserved property is located, the place where the respondent resides or the people's court with jurisdiction for preservation measures before bringing a lawsuit or applying for arbitration. The applicant shall provide a guarantee. If no guarantee is provided, the application will be rejected. After accepting the application, the people's court must make a ruling within 48 hours; Those ordered to take protective measures shall be executed immediately. If the applicant fails to bring a lawsuit or apply for arbitration according to law within 30 days after the people's court takes the preservation measures, the people's court shall lift the preservation.

Article 216th of the Civil Procedure Law of People's Republic of China (PRC), after the people's court accepts the application, if the facts and evidence provided by the creditor are clear and legal, it shall issue a payment order to the debtor within 15 days from the date of acceptance; If the application is not established, the ruling shall be rejected. The debtor shall pay off the debt within fifteen days from the date of receiving the payment order, or file a written objection with the people's court. If the debtor fails to raise any objection or perform the payment order within the period specified in the preceding paragraph, the creditor may apply to the people's court for compulsory execution.