司法实务对合同债权人行使其保全撤销权的认识和理解尚存在歧义,文章从撤销权的性质、撤销权成立的要件、行使撤销权的主体及其法律效力四个方面进行分析和探讨,从而明确合同债权人保全撤销权的立法意义及适用条件。 Judicial practice still has ambiguities in the understanding and understanding of the contractual creditors exercising their preservation and revocation right. The article analyzes and discusses the nature of the revocation right, the establishment of the right of revocation, the subject of exercising the right of revocation and its legal effect so as to make it clear The Legislative Significance and Applicable Conditions of Contractual Creditors’ Safeguard of the Right of Cancellation.