Abstract: ‘Jingyu 1’is a new pink-flowered cultivar of blackberry（Rubus L. subgenus Rubus Watson）which was selected from the seedlings of cultivar‘Kiowa’from the United States.‘Jingyu 1’is thornless. Its flower is pink，and fruit is black，weighing about 6.7 g on average. The flesh has a sour and light sweet taste，with soluble solids content of 10.3%，and it is early maturing. The yield is up to 15 300 kg ? hm-2. The ripening period is from mid-June to mid-July in Beijing region. It is suitable for fresh food and processing.