There have been different qualitative analyses on official dialectal pronunciations and their fundamental dialectal accents of the Ming and Qing Dynasties since the beginning of the century.The paper aims to generalize them on the basis of discussion.Owing to the complicated characterization of official dialectal pronunciations recorded in the existing documents,it is necessary to categorize the pronunciations into two series:standard official dialectal pronunciations and local official dialectal pronunciations,each of which includes many variations on different levels.According to the characterization of the variations,the paper attempts to draw up some rules for practical assessment.