The soil nutrient status of facilities greenhouse vegetable was greatly affected by the high intensive cultivation and management，and the trend of soil nitrogen and phosphorus residues was not clear with the increase of planting years.To evaluate the impact of long-term application of large amounts of manure and inorganic compound fertilizer on protected soil，and to determine the phosphorus leaching threshold value，field research and lab analysis were used to clarify the relationship between the nutrient residues in greenhouse soil and planting years.Based on this，the soils of facility vegetable field，located in Taigu，Shanxi province，were used as samples，and the content of nitrogen and phosphorus residues and migration characteristics of greenhouse soil in cinnamon soil with planting age of 0，10，20 and 30 years were analyzed.The results exhibited that NO^3--N and Olsen-P mainly accumulated in the surface soil of different greenhouse age.With the depth of soil layer increased，the content of NO^3--N decreased，and the NO^3--N content in 0～100 cm layer was higher significantly than that of 100～200，200～300 and 300～400 cm layer of different planting ages，respectively.The NO^3--N contents in 0～100 cm layer were 34.9%，43.4%，40.9% of that of 100～200，200～300 and 300～400 cm layer，respectively，and the maximum amount of NO^3--N accumulation was achieved in 20 planting years.The NO^3--N content of different planting years was higher than that of the open field.The Olsen-P accumulation in 0～20 cm first increased，and then decreased with the increasing of greenhouse age.The Olsen-P(0～40 cm)content of different cultivated year was 3.8～5.6 times of the open field，and Olsen-P content of 20 planting years was the highest.The Olsen-P content decreased abruptly from 40 cm deepth，and it was 24.66 mg/kg in top-soil of open field which was close to that of 20～40 cm of 10 planting years and 40～60 cm of 20 planting years.A significant correlation were found between the NO^3--N content and total nitrogen content in 0～400 cm，and a power relationship was found between Olsen-P and total P in 0～100 cm layer，both of which indicated that about 50% NO^3--N and about 50% Olsen-P contents were depended on total nitrogen and phosphorus content in soil，respectively.The phosphorus leaching threshold value was 45.1 mg/kg of Olsen-P content in cinnamon soil region of Shanxi. In practice，a large amount of NO^3--N and Olsen-P were accumulated in surface soils(0～20 cm)due to excessive and irrational fertilization in vegetable productions within short-term，which might be leading to NO^3--N and Olsen-P pollution in groundwater under flood irrigation conditions.