通过调查研究影响中国北方夏季白菜生产的多种主要因素为依据，简要阐明选育北方夏季白菜新品种以高抗病毒和耐高温干旱为主要育种方向，初步提出适宜北方夏播白菜新品种以夏阳类白菜自交分离选择，当地良种自交纯化、定向回交，使其基因重组及抗病、抗逆性鉴定为主要育种技术，创造出新的育种材料，并用山东农科院蔬菜所育成的适宜北方夏播白菜新品种结果为佐证，开展了相关性研究。 Based on the investigation of many main factors that affect the summer cabbage production in northern China, this paper briefly illustrates that breeding new summer cabbage varieties in northern China with high anti-virus and high temperature drought as the main breeding direction, Chinese cabbage self-selection, self-self-purification of local varieties, directed backcross, gene recombination and disease resistance, resistance identified as the main breeding technology to create a new breeding material, and with Shandong Academy of Agricultural Sciences bred Suitable for the northern summer sow cabbage new variety results as evidence, carried out a correlation study.