Abstract: Facility agriculture is one of the symbols of modern agriculture，embodies the transformation of traditional agriculture to modern agriculture.Status quo of development and main problems of facility agriculture in Tianjin city were introduced.Random inspection of greenhouse was executed to check environmental parameters and safety performance parameters，in order to analysis structural performance of greenhouse accurately.On this basis，mechanization technology and equipment appropriate were selected.It provides the basis for selection of transformation and upgrading of sunlight greenhouse optimization of Tianjin city.