“断水、断电”是督促当事人履行义务的有效手段,能在当前水污染防治中发挥重要作用。对目前已有规范进行分析后发现,它对若干基本权利构成限制,与最小侵害原则不符。然最小侵害仅为比例原则组成部分,乃警察法时代控权理念的产物。时代背景变迁后,它已不再单独具有评判管制措施合法性的功能。“断水、断电”作为一种行政强制执行方式,至少在我国当前的水污染治理领域中具有正当性。 “Water, power off ” is an effective means to urge the parties to fulfill their obligations, can play an important role in the current water pollution prevention and control. An analysis of the existing norms has found that it limits certain basic rights and is inconsistent with the principle of least harm. However, the minimum violation is only a component of the principle of proportionality, which is the product of the concept of control in the era of police law. After the background of the times changes, it no longer has alone the function of judging the legitimacy of regulatory measures. “Water cut, power cut ” as an administrative enforcement means, at least in our country’s current water pollution control in the field of legitimacy.