Abstract: Objective]Sunlight greenhouse construction directly influences the ability to intercept solar radiation.[Method]In order to improve the utilization of solar radiation in solar greenhouse energy,based on the characteristic of solar radiation distribution and transmission theory of solar radiation intensity in different regions,the study took Urumqi area in Xinjiang as an example,the sun light intercepted by the front slope roof of sunlight greenhouse as the evaluation index,in combination with the time of solar radiation,the dynam-ic change law of the geographical position of solar greenhouse,using Energy Plus simulation software to analyze the construction of the optimum orientation of sunlight greenhouse in this area.[Result]The results showed that during the most unfavorable growth period of crops growing in winter in Urumqi area(1 1/1 ~2/28 ),the best orientation was southwest 10°.[Conclusion]This paper presents a method for the construction of solar greenhouse,which is based on the simulation and calculation,and is verified by the method of measurement and simulation.The model provides methods and theoretical guidance for the rational construction of solar greenhouse,which could not using the criteria and parameters simply to applied in solar greenhouse construc-tion in various regions.