Abstract: The content of stage planting tomato in three different places of Wulanwusu,Paotai and Shawan were determined based on the indexes of soluble sugar,vitamin c,soluble solid,lycopene and organic acid.By collecting the relevant meteorological data,the impacts light-temperature factors of maturity fruit setting on quality of processing tomato in Xinjiang were studied through path analysis and correlation analysis.The results showed that all meteorological factors had effect on processing tomato fruit quality except sunlight time and relative humidity.Total effective temperature accumulation above 15℃ and daily mean temperature showed more effects on lycopence,maximum temperature and daily mean temperature had the more direct effect on soluble solid content,daily mean temperature and temperature accumulation above 15℃ had the more direct effect on vitamin c.minimum temperature and daily temperature difference had the more direct effect on soluble sugar content,minimum temperature,daily temperature difference and maximum temperature had the more direct effect on organic acid.

Key words: Xinjiang, Meteorological factors, Processing tomato, Quality