Abstract: Taking the greenhouse structure in cold and drought area as the research object, according to the relevant issues involved in the design of greenhouse structure optimization deployment analyzed and discussed, starting from the lighting, insulation, and the security of 3 aspects, to study some basic requirements for cold and arid area structure of sunlight the greenhouse was designed to meet the need, and then the author elaborated several measures and methods in cold and drought area should take in sunlight greenhouse structure optimization in the design process, analysis of hope that the above problem can make the greenhouse structure performance under extreme conditions improve.