Objectives : The aim of this study was to investigate the characteristics of Ryodoraku and association of Ryodoraku in Idiopathic Facial Paralysis Patients Methods : Subjects were 53 patients with Facial palsy patients and 28 normal people. We calculated the average Ryodoraku score(RS, ${mu}A$) and each variation from physiologic range of 12 Ryodoraku points, and investigated the incidence when left and right points were simultaneously below(bilateral deficiency) or above(bilateral excess) physiologic range. Results : The electric current value of several meridian of normal group was more higher in idiopathic facial palsy group than in normal group. The measurement value of Ryodoraku followed sex was not significant statistically. Conclusions : These findings suggest that the measurement value of several Meridians of Ryodoraku is more higher in idiopathic facial palsy group than in normal group, because Ryodoraku has low correlation with Parasympathetic nerve.