Taking tomato variety ‘bofen' as experimental material and ordinary film as the contrast,this paper studied the effect of diffuse light thin film on tomato growth and fruit quality. The results showed that tomato had strong growth vigor under diffuse light thin film,the content of chlorophyll was higher,the fruit setting number and average single fruit weight were increased by 12.52% and 7.71%,respectively. Its yield was also promoted by 21.19%. Besides,the fruit volume was significantly enlarged. The fruit...