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Introduction Solitary fibrous tumors require complete surgical resection to avoid recurrence. Large solitary fibrous pelvic tumors are difficult to resect completely with conventional surgical methods. We herein report a case in which a joint surgical approach was required for resection due to the location and size of tumor. Case presentation A 45‐year‐old man had a large solitary fibrous tumor in the pelvis, which extended into the left obturator foramen. The patient underwent tumor resection with vesico‐prostatectomy, transanal total mesorectal excision, and opening of the foramen obturatum. The tumor was grossly resected completely. No recurrence was noted nine months after surgery. Conclusion A multidisciplinary team approach with transanal total mesorectal excision may provide complete resect of large pelvic solitary fibrous tumors.