在不当得利制度中,基于原受利益所取得的利益是否返还是纠纷中经常遭遇的问题,笔者认为应分情况对待。属于“更有所取得的利益”的增加利益属于返还标的。而关于价额偿还的情况下,实际出卖价额高出其客观价值的问题属于返还范围的范畴,认为依社会通常观念如无受益人的行为介入受损人也理应亦可获得的财产利益应当返还。 In the unjust enrichment system, based on the original benefit received by the interests of whether the return is often encountered in disputes, I believe that the situation should be treated. Belonging to “more benefits to be gained ” the added benefits belong to the subject of the return. In the case of the reimbursement of the amount, the issue of the actual selling price above its objective value belongs to the scope of the reimbursement, and the property interest which should be available to the impaired according to the usual concept of society, such as the non-beneficiary, should be Return.