Abstract: Scopolamine Butylbromide M cholinergic receptor blocker, can selectively relieve gastrointestinal tract, biliary and urinary tract smooth muscle spasm and inhibit peristalsis, can also be used to relieve vascular smooth muscle spasm and improve microcirculation, clinical widely used for various causes of gastrointestinal spasm, biliary colic, renal colic or gastrointestinal motility hyperfunction. In this paper 1 cases of laryngeal edema induced by scopolamine butylbromide.