Patients with neurogenic bladder undergo morphometric and functional changes of their bladder and urethra. As a result, voiding symptoms such as frequency, nocturia, urgency and incontinence appear. We experienced two cases of the urinary incontinence treated with Samboo-tang(Sanfu-tang). In the point of Differentiation of Syndrome, two cases were diagnosed as Deficiency Syndrome of Yang of the kidneys. After Samboo-tang(Sanfu-tang) administration, the frequency of the urinary incontinence were decreased and the accompanied symptoms also improved. So, we report two cases with a brief view of related literatures.