中止未遂的成立要求行为人基于自己的意思实施中止行为并成功阻止犯罪结果的发生。对中止未遂不施加刑罚处罚不影响犯罪的成立。关于预备阶段能否成立中止及其法律效果,学界目前还没有统一定论。在共犯阶段,中止未遂的成立要求行为人阻止正犯人的行为且阻止犯罪结果的发生。 The establishment of an attempted suspension requires that the perpetrator commit a suspend action based on his or her own meaning and successfully prevent the outcome of the crime. Failure to impose penalty penalties for attempted suspension does not affect the establishment of the crime. As to whether the preparatory phase can be set up and its legal effect, there is no unified conclusion in academic circles at present. In the stage of complicity, the establishment of the attempted suspension requires that the perpetrator stop the behavior of the prisoners and stop the criminal consequences.