Abstract: This experiment was conducted to research the responses of‘Zhongdi No. 77’to density and fertilization, in order to improve the productivity of‘Zhongdi No. 77’and to provide references for the largescale production of‘Zhongdi No. 77’in Liaoning Province. The test used re-splitting action design: fertilizer factor was assigned to the main plot, density factor to the subplot and cultivar to the sub-subplot. Set fertilizer treatment for two levels as normal fertilizer and high fertilizer. Set density factor for five levels as 45000, 52500, 60000, 67500 and 75000 plant/hm². The experiment adopted randomized block design and 3 replications. The results showed that‘Zhongdi No. 77’had higher density-tolerant, and its yield reached the maximum at the density of 60000 plant/hm². On average, the yield of north was 25.6% higher than that of the west in Liaoning Province. In western Liaoning Province, the yield increased significantly with an increasing application of fertilization, the maximum yield increased by 28.8% . In the north of Liaoning Province, increased fertilization had no obvious effect on the yield. In the west of Liaoning Province: under the higher fertilization level, the maximum yield was got at 60000 plant/hm²(8867.5 kg/hm²). In the north: under the normal fertilizer level, the maximum yield was got at 60000 plant/hm²(9908.8 kg/hm²).