The question of whether commodatum has the equivalent legal effect as to the property right or not is much debated recently, which we could also find similar discussion under German jurisprudence. Focusing on this question, this paper argues for negative answer based on the perspectives of comparative legal study and legal interpretation mythology. This paper argues that to deny property right effect to commodatum conforms to the legislation goal, and there is no gap in terms of legal interpretation. To give the property right effect to commodatum is in contradict with the core value of current law, and in particular, to give different legal effect to onerous contract and gratuitous contract is not persuasive.