Solitary rectal ulcer syndrome (SRUS) is a rare disorder in children. There are few investigations about the exact incidence and effective treatment of SRUS in children. We describe a 12-year-old male patient who had rectal prolapse for 9 years, hematochezia for 7 months, and was diagnosed with polypoid solitary rectal ulcer syndrome with rectal prolapse by colonoscopy. Anorectal manometry was also performed to evaluate the cause of frequent relapses.