Legal analysis: To be a guarantor of other people's bank loans, you generally need the original ID card, photocopy, household registration book, monthly income certificate and running bill of the guarantor.

Legal basis: Article 688 of the Civil Code of People's Republic of China (PRC) stipulates in the guarantee contract that the guarantor and the debtor are jointly and severally liable for the debt, which belongs to the joint liability guarantee.

When the debtor of joint and several liability guarantee fails to perform the due debt or the circumstances agreed by the parties occur, the creditor may require the debtor to perform the debt, or may require the guarantor to assume the guarantee liability within the scope of its guarantee.