Abstract: Taking ‘Tianchi 565f1’ tomato as the test material and a one-way randomized block design, three different colors of mulch, silver mulch（T1）,transparent mulch（T2）,and black mulch（T3） was set up, with no mulch as the control（CK）.The effects of different colors of mulch on the growth, greenhouse air temperature and humidity, yield and fruit quality of tomato under substrate cultivation conditions were investigated, in order to provide reference for the development of substrate plastic film coverage in solar greenhouses in southern Xinjiang.The results showed that different colors of mulch were beneficial to the growth and development of facility tomato, its plant height and stem thickness were larger, the daily accumulation of air temperature increased, the daily accumulation of air humidity decreased, the net photosynthesis rate increased, the yield increased, and the quality was improved.The yield of single plant of facility tomato in T3 mulch treatment was up to 1.28 kg, the content of vitamin C was 44.63 mg·（100g）^-1,and the content of soluble solid was 6.84%.Tomato yield was low and quality was poor in CK.Correlation analysis showed that the yield of tomato was significantly negatively correlated with the daily accumulation of air humidity and positively correlated with the quality index soluble solids.In summary, T1,T2 and T3 were all conducive to improving the quality and yield of tomatoes in facilities, of which the T3 treatment had a better effect and was worth promoting.