Greenhouses can provide fruits and vegetables with growth environment in its non-growth seasons and help increase their pro-duction. The greenhouses environment requirements are more accurate because of the inappropriate season for plants growth naturally. There mainly involves six indicators of greenhouse strawberry growth environment including air humidity,soil moisture,alkalinity,tem-perature,CO2 ,and light-intensity. Relative data is collected by the wireless sensor network for a long time,and principal component anal-ysis is applied to analyze the key factors influencing the greenhouse crop growth during the seeding period of green strawberry. The analy-sis shows that there are three principal components and their contribution rate are 44. 57%,29. 00% and 15. 83% respectively. The cumu-lative contribution rate can reach 89. 40% and therefore these three principal components can be used to replace the original six indicators to reflect the original greenhouse strawberry growth environment information and to represent the information no longer overlap,which is very important to the reproduction of same plants and can enable them to improve the efficiency and accuracy of greenhouse cultivation management greatly.