Currently EMG Biofeedback is being highlighted as one technique for the treatment of psychosomatic disorders. EMG Biofeedback as a therapeutic approach to writer's cramp is thought to be effective by following reasons : 1. Establishment of a good therapeutic relationship through the medium of the EMG (instrument) 2. Effect of suggestion 3. Objective perception of symptom 4. Muscular relaxation training 5. Relearning of writing 6. Removal of psychological stress 7. Awarness of psychological factors 8. Introduction process to psychoanalysis