The case report discusses a rare occurrence of tubal pregnancy in a patient with uterine didelphys, managed using combined hysteroscopy and laparoscopy. A 29-year-old Gravida 2 Para 0 (0010) with a right tubal ectopic pregnancy alongside incidental uterine didelphys detected via physical examination and three-dimensional transvaginal ultrasound. The patient underwent a combined diagnostic and operative laparoscopy, where a right salpingectomy was performed using a harmonic scalpel. Diagnostic laparoscopy showed two uterine horns with each attached fallopian tube and ovary with an interostial length of 4 cm. Diagnostic hysteroscopy confirmed the presence of two separate uterine cavities and cervices without communication. The procedure demonstrated that the technique for laparoscopic salpingectomy in cases of uterine didelphys parallels that for a normal uterus. The use of combined hysteroscopy and laparoscopy proved effective in evaluating both the external uterine structure and internal cavity, facilitating accurate diagnosis and treatment of Müllerian anomalies with ectopic pregnancy.