In this study，soil salt content，ions components of salinity and soil pH value in greenhouse with different cropping years were analyzed .The results showed that newly greenhouse turned to secondary salinity soil in the 3thor 4th year.The probability of greenhouse soil electrical conductivity exceeded 0.5 mS·cm-1 in over 5 years of old facilities were much higher than those of the newly ones.Soil salt were highly accumulated among 0~20 cm layer，and decreased with the increase of soil layer.Iongs components of salinity in soil were mainly SO2-4 and Ca2+,the order of ions were SO2-4＞HCO-3＞Cl- and cations were Ca2+＞Na+＞K+＞Mg2+.Along with the increase of cropping years，pH value decreased obviously．After 15 continuous planting，the average soil salt increased by 1.25 times，the average pH value decreased by 9.3%.Soil secondary salinity accompanied by soil acidification，both of them became main obstacles to the sustainable development of the facilities production.