To provide a device formed by including an absorbent cotton around the root of a stoma, a joint, and a positioning adhesive tape, capable of preventing bowel leakage and allowing a stoma holder to live a daily life in peace.

The stool leakage prevention device for stoma comprises: an absorbent cotton (1) wound around the root of the stoma; a joint (2) for adjusting a tightening degree and served as a band and a joint; and a positioning adhesive tape (3). The bowel leakage prevention device for stoma is configured as mentioned above.