In order to explore the comprehensive effects of different forms of molybdenum（Mo） fertilizer on the yield， quality and mineral nutrient content of Chinese cabbage， the varieties of "Shanghaiqing" and "Aijiaohuang" of Chinese cabbage were selected as the experimental materials， the random block experimental design was used to carry out both in field experiment and pot experiment respectively. A total of 6 treatments were set up： no fertilization （CK）， habitual fertilization （NPK）， habitual fertilization+ potassium molybdate （NPK+ KMo）， habitual fertilization+ ammonium molybdate （NPK+ AMo）， habitual fertilization+ molybdenum oxide （NPK+ BMO） and habitual fertilization+ nano molybdenum oxide （NPK+ NMo）. The different effects in yield， quality and mineral nutrient content of Chinese cabbage were compared and analyzed. Compared with NPK treatment， each Mo application treatment could significantly improve the fresh matter of field flowering cabbage and potted Chinese cabbage shoot. Among them， NPK+ AMo treatment had the best effect， which increased 32.3% （field cabbage）， NPK+ NMo and NPK+ AMo treatment could increase 30.8% and 30.2% （potted cabbage）compared with NPK treatment，respectively； the contents of soluble protein， vitamin C and reducing sugar of Chinese cabbage were increased， while the content of nitrate was reduced under Mo application. Compared with NPK treatment， NPK+ AMo and NPK+ NMo treatments significantly reduced the nitrate content of Chinese cabbage by 18.9% and 14.9%，increased the reducing sugar content by 23.8% and 30.2%，respectively， NPK+ NMo treatment could significantly increase the contents of soluble protein and ascorbic acid by 25.8% and 50.2%， respectively； besides， NPK+ AMo and NPK+ NMo treatments significantly reduced the nitrate content in the shoot of potted Chinese cabbage by 27.8% and 29.4%， respectively. In addition， NPK+ NMo treatment significantly increased the contents of soluble protein， ascorbic acid and reducing sugar by 86.5%， 64.0% and 22.2%， respectively； meanwhile， each Mo application treatment could significantly increase the contents of Mo and Mg in Chinese cabbage. NPK+ NMo treatment had the greatest effect， increasing 79.2% and 55.7% respectively； the content of Mg and Mo in the shoot of potted Chinese cabbage in NPK+ NMo treatment increased 74.31% and 96.88% compared with NPK treatment， respectively， while the content of Zn in NPK+ AMo treatment was different from that in NPK treatment， increased by 52.2%. On the basis of habitual fertilization， increasing the application of different forms of Mo fertilizer could improve the yield， nutritional quality and mineral nutrient content of Chinese cabbage， improve the edible value， reduce the nitrate content and improve the edible safety. In general， the effect of increasing the application of NMo was the best， followed by AMo.