<p>A stable thrombin composition for oral administration having an excellent solubility is prepared with thrombin as a hemostatic ingredient, gelatin, albumin and glycine as a stabilizer and sucrose and/or sugar alcohol as a carrier. The thrombin composition is effective for the treatment of hemorrhage in the upper alimentary canal, is stable even at room temperature conditions for long periods of time, has excellent solubility and can be orally administered in a simple manner.</p>
