Abstract: In order to develop blueberry industry, realize the regionalization of blueberry varieties, conduct the planter to according to production purposes, choose the right ecological conditions and varieties. The author mainly researched on the phenological periods of different blueberry cultivars. By carrying out a systematic investigation on the phonological periods of 3 types of blueberry cultivars: ‘Brightwell’, ‘Misty’ and ‘Bluecrop’, the author found that: there were obviously different phonological periods either between the three cultivars at the same ecosystem or for the same cultivar in different ecosystems.