An object of the present invention is to produce a magnetically oscillating water in which the interaction between water molecules is weakened by subjecting water to a damping oscillating magnetic field treatment with a magnetically oscillating water producing apparatus that applies a strong damping oscillating magnetic field. It is an object to provide a method for producing magnetically vibrated water having physical properties and / or functionality. According to the present invention, a magnetic treatment water tank for magnetically treating water to be treated is accommodated in an air-core magnetic coil, a step of supplying the water to the magnetic treatment water tank, and a step of connecting to the magnetic coil. Charging the capacitor, and discharging the power charged in the capacitor to the magnetic coil to form a damped oscillating magnetic field having a maximum peak intensity of 1.0 Tesla or more in the magnetic coil and applying the damped oscillating magnetic field to the water to be treated. And (c) producing magnetically vibrated water. [Selection diagram] Fig. 1【課題】本発明は、強力な減衰振動磁界を印加する磁気振動水製造装置で水を減衰振動磁界処理することによって、水分子同士の相互作用が弱められた磁気振動水を製造し、新たな物性、及び/又は機能性を有する磁気振動水の製造方法を提供することを課題とする。【解決手段】本発明は、被処理水を磁気処理する磁気処理水槽を空芯の磁気コイルの内部に収容する段階と、磁気処理水槽に前記被処理水を供給する段階と、磁気コイルに接続したコンデンサを充電する段階と、コンデンサに充電された電力を前記磁気コイルに放電して前記磁気コイルに最高ピーク強度が1.0テスラ以上の減衰振動磁界を形成して前記被処理水に印加する段階と、によって磁気振動水を製造することを特徴とする。【選択図】 図1