限购令作为国家进行控制房价的一项重要政策,暂且不论其是否起到了遏制房价过快增长的目的 ,但就其出台是否具有合法性问题,学术界就颇多诟病,且大多从行政法角度对其不合法性进行探析。本文以物权法为视角,尝试探讨限购令作为一种国家政策,即公权力在干预私领域过程中,存在的不合法性。并进一步对其不合法性的根源进行深入探析。 Restriction order as an important policy of the state to control housing prices, for the time being whether or not it has played a purpose to curb the excessive growth of housing prices, but whether the introduction of its legitimacy or not, many academic criticism, and mostly from the administrative law point of view Analyze its illegality. In this paper, from the perspective of property law, this paper attempts to explore the restriction order as a kind of national policy, that is, the illegality existed in the process of intervention of public power in the private sphere. And further analyze the root of its illegality.