We report a case of neck abscess in a infant. A 2-month-old female who presented with neck abscess was admitted the same day. CT demonstrated an abscess of the left submandibular triangle. She underwent drainage by nutrition catheter within six hours after admission, and was discharged from the hospital 8 days later. Although it is still thought that early open surgical drainage is the most appropriate method for treatment of cervical abscess, early treatment with a drainage catheter may replace the surgical method; this method avoids life-threatening complications while achieving good cosmetic results and rapid recovery.