A method and a device for re-dissolving hydrogen molecules in a circular disk-shaped electrolytic cell, which is characterized in that a gas-collecting water-guiding disk and an electrode plate are respectively arranged in the interior of a seat body and a cover body, and an ion film is arranged between two electrode plates, a gas-collecting water-guiding chamber is respectively provided at locations where the seat body and the cover body correspond to two gas-collecting water-guiding discs, the centers of the two electrode plates are provided with water inlets, and locations corresponding to the two electrode plates are provided with a plurality of hollowed and radially arranged anode and cathode chambers; raw water flows into the anode and cathode chambers from the water inlets of the two electrode plates, hydrogen molecules and oxygen molecules generated after electrolysis are carried away from the cathode and cathode chambers by cathode water and anode water, respectively, and imported into two gas-collecting water-guiding chambers, and the hydrogen molecules are allowed to react with the cathode water in the gas-collecting water-guiding chambers to generate an inter-dissolving effect; at the same time a pressure is exerted to forced more hydrogen molecules to be re-dissolved into the cathode water, thereby increasing the concentration of hydrogen molecules in the cathode water.一種圓碟型電解槽之氫分子再溶合方法及裝置,尤特指座體與蓋體的內部分別設有一集氣導水盤與一電極板,該二電極板之間設有一離子膜,該座體與蓋體對應於二集氣導水盤處分別設有一集氣導水室,該二電極板的中心設有進水口,該二電極板的對應處設有複數個鏤空且呈輻射狀配置的陰陽極腔室,原水從二電極板的進水口分別呈輻射狀流入陰陽極腔室,電解後所產生的氫分子與氧分子,藉由陰極水與陽極水分別帶離陰陽極腔室匯入二集氣導水室,並讓氫分子與陰極水在集氣導水室產生交溶作用,同時配合壓力迫使更多的氫分子再度溶入陰極水中,藉以增加陰極水中的氫分子濃度,為其特徵者。