The development of motor neuron disease has been reported in a small number of cases after electric shock trauma. Our case is a 61-year-old male telecomunication worker who presents with complaints of progressive loss of strength in his right upper and lower extremities 22 years after an electric shock. It is accompanied by unsteadiness in walking, difficulty in speaking and swallowing. In electroneurophysiological examination; chronic changes compatible with preganglionic involvement were observed in the lower and upper extremities. On physical examination, the patient speaks dysarthric. Mobilized with walker, functional ambulation scale (FAS) is stage 2. There is 3/5 strength in the right upper extremity and 2-2 /5 strength in the right lower extremity. Although rare, neurological complications may occur decades later after electric shock. There are a limited number of case reports and observational meta-analytic studies in this field in the literature.