High-voltage electrical injuries are rare but devastating events, frequently associated with deep tissue destruction, vascular thrombosis, and severe systemic complications. Traumatic electro-amputation of a limb at the scene of the accident is exceptional and reflects the extreme severity of the injury. We report the case of a 24-year-old man with no prior medical history who sustained a high-voltage electrical injury resulting in spontaneous mid-leg amputation at the accident site. Despite early surgical management and intensive care, the patient developed severe rhabdomyolysis complicated by multiorgan failure, leading to death within 48 hours. This case highlights the pathophysiology, management challenges, and poor prognosis associated with high-voltage electrical trauma complicated by rhabdomyolysis.