The purpose of this study was to aid in diagnosis of salivary gland disease by comparing the sialogram with the scintigram. In this study, 47 patients (52 glands) who had taken the sialography and the scintigraphy were examined. The result of two methods was compared with the clinical and operative diagnosis. The following results are obtained. 1. In inflammatory diseases of the salivary gland, the scintigraphy can be a valuable substitution for a sialography. 2. In inflammatory diseases of the salivary gland, we can get more informations in case of the combined use of the sialography and the scintigraphy. 3. In tumorous lesion of the salivary gland, the sialography is superior to the scintigraphy. But both methods are less valuable in diagnosing the extraglandular tumors.