A new method for spatial analysis of droplet deposition was presented, by which the parameters of spraying deposition in greenhouse were analyzed, including droplets equivalent diameter, spraying coverage and droplets density. The experimental results showed that the droplets equivalent diameter and spraying coverage is larger in both sides than central axis of the greenhouse, while droplets density is opposite. The peak value of droplets equivalent diameter and spraying coverage respectively appears in both sides of the greenhouse 25m away from entrance, and three peak values of droplets density occur in central axis of the greenhouse with the distance of 13, 35 and 52m from entrance, respectively. The results also indicated that the method of spatial analysis can more objectively reflect the droplets deposition distribution in greenhouse by contrast to simple curve analysis.