Creditor's right is the right in civil law to request others to do certain acts. Based on the relative principle of rights and obligations, it is a debt relative to the creditor, that is, a civil law obligation that must be a certain act. Therefore, the relationship of debt is essentially a judicial relationship of creditor's rights and debt. Neither creditor's rights nor debt can exist alone, otherwise it will lose its meaning. Creditor's rights and debts can be transferred or disappear due to the debtor's repayment. However, whether the transfer of creditor's rights and debts or the disappearance of creditor's rights and debts must comply with the corresponding legal provisions.