Legal analysis: if the lender fails to repay, the guarantor is obliged to repay. There are two ways for the guarantor to undertake the guarantee, one is the general guarantee; The second is joint guarantee. The general guarantor enjoys the right of first appeal, and can refuse to undertake the guarantee liability to the creditor before the main contract dispute is tried or arbitrated and the debtor's property is enforced according to law. However, the co-guarantor does not have this right. In joint and several guarantee, the creditor may directly ask the guarantor to bear the guarantee responsibility.

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

The forms of suretyship include general suretyship and joint liability suretyship. If the parties have not agreed on the way of guarantee or the agreement is unclear in the guarantee contract, they shall bear the guarantee liability according to the general guarantee.

Article 688 Where the parties stipulate in the suretyship contract that the surety and the debtor shall be jointly and severally liable for the debts, it is a suretyship of joint liability. 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.

Article 699 Where there are more than two guarantors for the same debt, the guarantors shall bear the suretyship liability according to the share of suretyship agreed in the suretyship contract; If there is no agreement on the share of guarantee, the creditor may require any guarantor to bear the guarantee responsibility within the scope of its guarantee.