A magnetic stimulation device for blood comprises a magnetic stimulation unit which has a stimulation coil and can be disposed on a blood delivery unit or directly worn on a user's body. Furthermore, the stimulation coil is further connected to a pulse generation unit capable of outputting a pulse current to excite the stimulation coil, so as to utilize the electromagnetic pulse manner to perform strong but short magnetic stimulation to the blood flowing through the magnetic stimulation unit or the blood in the subcutaneous blood vessel of the user. Thus, the invention may perform magnetization therapy to viremia and associated diseases in the blood. Compared to the existed blood treatment devices, the magnetic stimulation method of the invention will not cause severe pain, have no discomfort and high safety, and will be more acceptable to patients.一種血液磁刺激裝置,其係包含有一磁刺激單元,該磁刺激單元係具有一刺激線圈,並可設置於一血液輸送單元上,或直接穿戴於使用者身上,同時該刺激線圈更連接有一脈衝產生單元,可供輸出一脈衝電流激發該刺激線圈,以利用電磁脈衝的方式,對流經該磁刺激單元之血液,或使用者皮下血管內的血液進行強力但短暫的磁刺激,藉此,不僅能夠對血液內的病毒血症以及相關疾病進行磁化治療,且相較於現有的血液治療裝置,採用磁刺激的方式不會產生劇痛、沒有不適感、安全性高,而更容易為病人所接受。