［Objective］ The soil nutrients and stoichiometric characteristics of different artificial forest types in Zizhou County， Shaanxi Province were analyzed， in order to provide a scientific basis for ecological management and restoration in the region. ［Methods］ Five representative artificial forest types in Zizhou County （Pinus tabuliformis pure forest， Platycladus orientalis pure forest， Robinia pseudoacacia pure forest， Prunus armeniaca×P. orientalis mixed forest， and R. pseudoacacia×P. armeniaca mixed forest） were selected as the study objects， with natural grassland as the control. The contents of soil organic carbon （SOC）， total nitrogen （TN）， and total phosphorus （TP） as well as their ecological stoichiometric characteristics of different soil layers （0—100 cm） under different forest stand types were investigated. ［Results］ The ranges of soil C， N， and P contents under five artificial forest types were 4.56—3.31 g/kg， 0.29—0.23 g/kg， and 0.58—0.55 g/kg， respectively. Within the 0—100 cm soil profile， the P. armeniaca×P. orientalis mixed forest showed the highest C， N， and P contents， with significant differences compared to other forest stand types. Both soil C and N contents exhibited decreasing trends with increasing soil depth. The TN content in mixed forests was higher than that in the pure forests of all soil layers. The SOC and TP contents in all soil layers except the 60—80 cm and 80—100 cm layers were highest in the P. armeniaca×P. orientalis mixed forest. The variation ranges of C∶P， C∶N， and N∶P in soil of the five artificial forest types were 7.75—5.69， 16.30—14.14， and 0.50—0.40， respectively. For all soil layers， C∶P ratios were the lowest in the pure forest of P. orientalis， while N∶P ratios were higher in mixed forests than in pure forests. TN and SOC were significantly positively correlated with N∶P in different forest stand types， and they were significantly positively correlated with both C∶P and N∶P at different soil depths. ［Conclusion］ Soil nutrients and stoichiometric characteristics differ significantly of different artificial forest types. Overall， the P. armeniaca×P. orientalis mixed forest demonstrates superior soil nutrient level and stoichiometric characteristics compared to other forest stand types. These findings indicate that mixed forests can enhance forest stand productivity and stability.