The present invention discloses a high-frequency electromagnetic field stimulator for changing a nerve threshold and comprises at least one electrical stimulator (1). The electrical stimulation device (1) includes at least one positive electrode terminal (12) and at least one negative electrode terminal (13), and a first spacing distance (for insulation) between the positive electrode terminal and the negative electrode terminal ( b) is provided, and the positive electrode terminal and the negative electrode terminal separate the nerve to be stimulated from the second distance (c). The electrical stimulator (1) conducts a voltage electrically, the voltage is less than or equal to 10V, and the frequency is in the range of 200 kHz to 800 kHz. The positive electrode terminal (12) and the negative electrode terminal (13) of the electrical stimulation device generate an electromagnetic field, and by covering the periphery of the nerve (2) to be stimulated by this electromagnetic field, electromagnetic waves having a low strength against the nerve to be stimulated. By performing the stimulation, the threshold of the electromagnetically stimulated nerve area can be increased and the pain of the nerve of the patient can be effectively relieved. [Selection] Figure 6本発明は、神経閾値を変更する高周波電磁場刺激装置を開示し、少なくとも１つの電気刺激装置（１）を備える。電気刺激装置（１）は少なくとも１つの正極電極端子（１２）と少なくとも１つの負極電極端子（１３）を備え、正極電極端子と負極電極端子との間には絶縁のための第１間隔距離（ｂ）が設けられ、且つ正極電極端子と負極電極端子は刺激したい神経と第２間隔距離（ｃ）を隔てる。また、電気刺激装置（１）は電圧を電気的に伝導し、この電圧は１０Ｖより小さいか等しく、且つ周波数は２００ｋＨｚ～８００ｋＨｚの範囲とする。電気刺激装置の正極電極端子（１２）と負極電極端子（１３）は電磁場を生成し、この電磁場で刺激したい神経（２）の周囲を覆わせることで、刺激したい神経に対して低強度の電磁刺激を行うことによって、電磁刺激された神経エリアの閾値を高め、患者の神経の痛みを効果的に緩和することができる。【選択図】図６
