Abstract: In order to explore the suitable mechanized cultivation mode of tomatoes in solar greenhouse, east-west ridge cultivation（1.8 m ridge spacing, density 3.3 plants/m~2） was carried out under mechanized ridge raising and transplanting. The distribution characteristics of light environment, yield and quality of tomato populations in different ridges from east to west were studied. The results showed that under the east-west ridge cultivation mode of the solar greenhouse（with a clear span of 8.5 m）, the tomato population in the southern row of the same cultivation ridge had a light transmittance of over 50% higher than that in the northern row. The weight of single fruit, yield per plant, and total yield of the southern row of tomatoes were significantly higher than those of the northern row by about 20%, and the quality was also better than that of the northern row. The light transmittance between rows of tomato under different cultivation ridges gradually increased from north to south, and there was no significant difference in the average light transmittance among the other three rows except for the first row, which was lower.There was no significant difference in the maximum photochemical quantum yield Fv/Fm of tomato leaves between different ridges. The distribution of tomato yield shows a gradually increasing trend from north to south between cultivation ridges, and there is no significant difference in fruit quality between different ridges. The total yield of tomato 5 ears of fruit reaches 71 866 kg/hm~2.