objective : The purpose of this study is to evalute characteristic CT and/or MR imaging findings of various hard palatal tumors. subjects and Methods : Fifteen patients(M:12, F:3, mean age:54 years) with a hard palatal tumor were included in this study. In all cases, diagnostic images were obtained(CT only : 10, MRI only: 2, CT and MRI:3), and in all patients the condition was pathologically proven. To determine tumor location and bony change, each imaging finding was retrospectively reviewed. Result : Among the 15 patients, tumor of a minor salivary gland was most common(n=9), followed by squamous cell carcinoma(n=4). In nine cases, the tomor was located at the palatal shelves, and in six, at the alveolar process-palatal angle. The pattern of bony change was destructive in seven cases, erosive in six, and infiltrative in two. In all cases, adenoid cystic carcinoma and meta static tumor, including squamous cell carcinoma, involved the palatal shelves and presented as destructive or infiltrative bony change. Pleomorphic adenoma and mucoepidermoid carcinoma arose at the alveolar process-palatal angle and posterolateral portion of the hard palate and in all cases presented as erosive bony change. Conclusion: The characteristic features of location and bony change are useful for the evaluation and differentiation of hard palatal tumors.