A 7-month-old, weak female dachshund dog which had signs of cough and sneezing while eating was admitted. This case was diagnosed as cleft hard palate by the physical and blood examination. After aseptic surgical preparation, a surgical method utilizing mucoperiosteal and buccal flap technique, in which accurate apposition and secure closure was very important, was used successfully. The defect of hard palate was healed completely on 10 days after surgery without any other complication.