Abstract: In present rape cultivation, water and fertilizer demand rule and their integrated application technology lack guiding standards. This study reviews the researches in this field, summarizes the demand rule of water, N, P and K fertilizer of the full rape growth period, aiming to provide references for rape cultivation and future research. The results show that water demand of the full growth period of rape in different regions varies from 3000 m3/hm2 to 4000 m3/hm2, and the critical period of rape water demand appeared at the flowering period and the pod period. Through a comprehensive comparison, we find that the suitable application amount of N, P and K fertilizers is 150- 180 kg/hm2, 60- 80 kg/hm2 and 120- 140 kg/hm2, respectively. The water and fertilizer coupling researches mainly concentrate on the combined amount of fertilizer and irrigation, but those fulfilling the integrated application are rarely seen. Chinese research in this field is relatively backward and superficial, only a few researches prove that the integrated application of water and fertilizer could improve the utilization efficiency and increase the yield. To sum up, the quantification of the water and fertilizer demanding rule of rape still needs further study, especially the technology of the integrated application.