摘要:在市场经济发达的条件下，由于信用经济的原因，大多数双务合同的债务，在履行期上往往不一致，若对方于缔约后财产状况明显恶化，可能危及先给付一方债权的实现时，如仍应强迫先给付一方履行其债务，则有悖于公平原则。为了避免这种状况的发生，不安抗辩权应运而生。但是由于我国立法上的缺陷，不安抗辩权制度仍然有如下不足之处：不安抗辩权与预期违约制度的冲突严重削弱了其制度价值；对不安抗辩权的法律移植有悖于初衷；不安抗辩权的担保相关法规不明确。针对上述的缺陷，笔者通过立足我国的实践的基础上借鉴国外的成功经验，对完善我国的不安抗辩权提出了若干建议。
关键词：不安抗辩权；预期违约；举证责任
Abstract:Under the conditions of developed economy market, due to credit economic reasons， most of the bilateral contract debt may can’t agree on the perforamnce time limit， and if the other party’s property become worse after contracting and may endanger he realization of the creditor's rights of the payment of the first party，like it still should be forced to pay the first party to perform its debts，it goes against the principles of fairness. In order to avoid such case from happening, unassured pleadings arises at the historic moment. As our country's legislation， the defects of the system still has the following unassured pleadings deficiency：the unassured pleadings and the anticipatory breach system conflict seriously weakened its system value； To the unassured pleadings legal transplant unintended ； And the guarantee of the related laws and regulations unassured pleadings is not clear. In allusion to the mention of above, the author puts forward some suggestions to perfect our ountry’s unassured pleadings，on the basis of the practice of our country and then take in some foreign sucessful ecperience.
Key words：rejection right；anticipatory breach of contract；burden
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