In order to clarify the optimal sowing amount and row spacing for the local Vicia sativa line planting in the south ofHenanProvince，a two -factor experimental design was used to study the effects of different sowing rates and row spacings onthe growth and development，freshgrass，straw and seed yield of Vicia sativa. Three sowing rates and four row spacing levelswere set up respectively，so as to provide scientific theoretical guidance for improving the high -yield cultivation technology of Vicia sativain actual production. The results showed that when the sowing rate wasconstant，the plantheight，fresh and dryweight per plant showed a trend of first increasing and then decreasing with the increase of rowspacing，and the maximumvalue was obtained when the row spacing was 30 or 40cm；The stem diameter and branching number showed a graduallydecreasing trend with the increase of rowspacing，and both reached the maximum value at 20 cm row spacing. When the rowspacing wasconstant，plant height and SPAD value increased gradually with the increase of sowingrates；Stem diameter and branching number decreased gradually with the increase of sowing rates. The optimal row spacing for seed setting traits were sowing rate 18.75 kg/hm²with 30 cm row spacing，sowing rate 26.25 kg/hm² with 30 cm row spacing and sowing rate 33.75 kg/hm²with 40 cm row spacing. The yield ofseed，grass and straw of Vicia sativa under different sowing rates and rowspacings was significantlydifferent( P<0.05). The highest seed yield was 3753 kg/hm² with sowing rate of 26.25 kg/hm² androw spacing of 30cm，the yields were 3468 and 3436 kg/hm² followed with sowing rate of 33.75 kg/hm² row spacing with 40 and 30 cm respectively. The highest yield of grass and straw was 35910 and 16878 kg/hm²，respectively，with sowing rate of 33.75 kg/hm²and row spacing of 20cm，followed by sowing rate of 33.75 kg/hm² with 30 cm row spacing of and sowing rate of 33.75 kg/hm²with 40 cm row spacing. The yield was 26761 and13052，23662 and 12127 kg/hm²，respectively. To sumup，in order to harvest the yield of grass andstraw，the optimal sowing rate was 33.75 kg/hm²with 20 cm rowspacing，the sowing rate of 26.25 kg/hm² with 30 cm row spacing was optimal selected for the harvested seed yield.