The present invention relates to a purgative composition for cleansing an intestinal tract and, specifically, to a purgative composition for cleansing an intestinal tract, the composition containing 40-60 g of polyethylene glycol, 10-28 g of sorbitol, and 1-10 mg of sodium picosulfate, on the basis of 100 ml of the composition, or 40-60 g of polyethylene glycol, 10-28 g of sorbitol, and 1-15 mg of bisacodyl, on the basis of 100 ml of the composition. The purgative composition according to the present invention has higher drug compliance while showing an excellent intestinal tract cleansing rate. In addition, the purgative composition exhibits a sufficient intestinal tract cleansing effect even when taken together with a small amount of water, thereby relieving the suffering that a patient must take a large amount of medicine when taking a purgative.
