The present invention discloses a device including: a U-shaped electromagnet core with V-opening, a pair of coil windings, and a hydro-electro synchronization cooling pipe group, thereby constituting a device capable of increasing the magnetic flux density vector sum of magnetizing work area, and lowering the operating temperature of the electromagnet. The U-shaped electromagnet with V-opening may reduce magnetic leakage of magnetic field lines outside the two poles, so as to enhance the magnetic flux density vector sum of the magnetizing work area. Cooling water pipes of the hydro-electro synchronization cooling pipe group are installed at the hollow location of the coil windings, so that the cooling water pipes and the coil windings are closely combined to increase its cooling area and effectively enhance the cooling performance when the electromagnet is operated. Accordingly, the U-shaped electromagnet induction device with V-opening and hydro-electro synchronization of the present invention can not only improve the magnetic flux density vector sum of magnetizing work area, but also reduce the operating temperature of the electromagnet, making it effective for use in treating osteoporosis or fracture healing.本發明之裝置係包含:一V型開口之馬蹄形電磁鐵芯、一對線圈繞組、一水電同步操作冷卻管組,構成可提升激磁作業區之磁通密度向量和,並可降低電磁鐵運作時溫度的裝置。V型開口之馬蹄形電磁鐵可降低兩磁極外側磁力線的漏磁,而提升激磁作業區之磁通密度的向量和。水電同步操作冷卻管組的冷卻水管安裝於線圈繞組的中空處,使冷卻水管與線圈繞組緊密結合,增大其散熱面積,而有效提升電磁鐵運作時的散熱效能。藉此,本發明之含水電同步操作之V型開口馬蹄形電磁感應裝置,可提升激磁作業區之磁通密度向量和,並可降低電磁鐵運作時的溫度,而可有效應用於治療骨質疏鬆或骨折癒合。1‧‧‧V型開口馬蹄形電磁鐵11‧‧‧V型開口馬蹄形電磁鐵芯12‧‧‧線圈繞組13‧‧‧V型開口結構131‧‧‧階梯層狀構造14‧‧‧水電同步操作之中空導電線141‧‧‧導體部142‧‧‧中空處15‧‧‧主磁力線16‧‧‧磁漏磁力線17‧‧‧激磁作業區