Abstract: Grape downy mildew is one of the most serious diseases in many vineyards in China. In 2012, a survey of grape downy mildew on 30 different grape cultivars had been conducted in Beijing vineyards. And these grape cultivars, based on their disease indexes, were classified and evaluated by significance and cluster analysis. It was showed that: 30 table cultivars could be divided into 4 groups: group 1, Kaiotome，87-1, Jingzaojing, Black Olympia, Benifuji, Otilia Seedless and Beniizuand, appeared the highest disease index (61.63-49.96); group 2, Jasimine, Yellow Rose, Autumn Black, Yatomi Rosa, Ryuho, Calmeria and Ruby Seedless, appeared higher (44.91-28.56); group 3, Hongshuangwei, Muscat Hamburg, Rizamat, Wuhezaohong, Centennial Seedless, Alexander and Italia, appeared medium (23.86-12.64); group f4, Queen of Vineyard, Kyoho, Xiangfei, Wink, Zuijinxiang, Fujiminori, Blush Seedless, Summer Black and Dawn Seedless, appeared the lowest disease index (10.47-3.78). In addition, the efficacy of 6 fungicides treatments for control of the disease was compared in field. It showed that: 6 fungicides all had good effectiveness, and among them, Mancozeb, Bouillie Bordelaise RSR and Chlorothalonil had best effectiveness and their control effects were 87.23%-76.48%.The results would be import direction for the management of grape downy mildew by using the resistant cultivars and efficacious fungicides.Key words: grape downy mildew (Plasmopara viticola); cultivar; disease index; control efficacy