Abstract: ‘Shangmai’156 is a new wheat variety selected and bred by Shangqiu Agricultural and Forestry Science Institute in 2015. To explore the suitable planting mode of‘Shangmai 156’, this experiment used the local traditional row spacing planting as the control to study the effect of row spacing and sowing amount on the growth and yield of wheat. The results showed that with the increase of seeding rate, the plant height and PAR value at 20 cm of canopy increased, the secondary root, tiller number, dry weight and PAR value at the bottom of canopy decreased, the larger the sowing amount, the more the number of panicles per hectare was, the less the number of grains per panicle and the 1000-grain weight were, and the difference in wheat yield under the treatment of high seeding rate (195 kg/hm2) and medium seeding rate (150 kg/hm2) was not significant, but both were significantly higher than that under the treatment of low seeding rate (120 kg/hm2); under the same seeding rate (150 kg/hm2), wide- narrow row treatment could reduce plant height, increase the number of secondary roots, tiller number, dry weight and PAR proportion at the bottom of the canopy, and coordinate the number of panicles per hectare, grain number per spike and 1000-grain weight, and increase the yield of wheat. In conclusion,‘Shangmai 156’is suitable for wide-narrow row planting, and the suitable seeding rate is 150-195 kg/hm2.