Solitary fibrous tumor (SFT) is a rare spindle cell tumor, which has never been reported to be derived from the wall of the small intestine. To describe a case of ileum intramural SFT. An ileum intramural SFT was observed in a healthy 26-year-old woman during cesarean section. Complete resection was performed to remove the tumor. Surgical specimens were used for pathological examination and immunohistochemistry, which confirmed the diagnosis of SFT. The patient had an uneventful recovery from the operation without any complications, recurrence, or metastasis during the 4-month follow-up. This report shows for the first time that SFT can occur in the intestinal wall and that complete resection can successfully remove the tumor with promising short-term prognosis. Thus, SFT should be considered in the differential diagnosis of any mesenchymal lesion arising from the gastrointestinal tract.