Taking‘Zhongyan 988F1’tomato as test material,the effect of different planting density on the yield and agrinomic traits in alpine region were studied,by using the experiment of two factors and four levels of density.The results showed that two factors of row spacing and plant spacing interaction effects had no significant difference,spacing between the difference reached significant level;tomato plant under the two kinds of density with (80-40) cm×35 cm and (70-40) cm×35 cm performance better overall traits,yield was relatively high.The difference of yield was significant level.They were the reasonable density of greenhouse tomato cultivation in alpine region.