Legal analysis: If you have good evidence, you can sue and succeed. 1. Collect evidence of borrowing money. If there is no debt, you can use other evidence, such as bank transfer records, telephone recordings, witness testimony, etc. , to prove the fact and amount of debt; 2. It is necessary to provide evidence of lending money to the other party at that time, such as a bank card that transfers money to the other party. If it is given in cash, print the voucher for withdrawal from the bank. Mainly to prevent the statute of limitations from exceeding two years. Formally, it can be the other party's written proof of repayment, or it can be an audio and video recording to prove that he has asked the other party for money many times. If the loan period has expired and the lender still fails to repay the loan after being urged, the lender may bring a lawsuit to the people's court according to law and use legal weapons to safeguard his legitimate rights and interests. Lenders should pay attention to the limitation of action when suing.

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

Article 63 Evidence includes:

(a) Statements of the parties;

(2) Documentary evidence;

(3) Physical evidence;

(4) Audio-visual materials;

(5) Electronic data;

(6) Testimony of witnesses;

(7) Appraisal opinions;

(8) Records of the inquest.

Evidence must be verified before it can be used as a basis for ascertaining facts.

Article 64 The parties have the responsibility to provide evidence of their own claims.

The people's court shall investigate and collect evidence that the parties and their agents ad litem cannot collect on their own due to objective reasons, or evidence that the people's court considers necessary for hearing a case.

The people's court shall comprehensively and objectively examine and verify the evidence in accordance with legal procedures.

Article 65 The parties concerned shall provide evidence of their claims in a timely manner.

The people's court shall, according to the litigant's claim and the trial of the case, determine the evidence that the litigant should provide and its time limit. If it is really difficult for the parties to provide evidence within the time limit, they may apply to the people's court for an extension of the time limit, and the people's court shall extend the time limit appropriately according to the application of the parties. If a party fails to provide evidence within the time limit, the people's court shall order it to explain the reasons; If the people's court refuses to explain the reasons or the reasons cannot be established, it may reject the evidence according to different circumstances, or accept the evidence but admonish it and impose a fine.

Article 66 When the people's court receives the evidential materials submitted by the parties, it shall issue a receipt indicating the name, page number, number of copies, original or photocopy of the evidence and the time of receipt, and the person in charge shall sign or seal it.