Abstract: In order to understand soil fauna diversity of different planting patterns, the soil fauna diversity of five planting patterns, including Ginkgo biloba (G), G. biloba+Triticum aestivuml (GW), G. biloba+Brassica campestris (GR), T. aestivuml (W)and B. campestris (R), were investigated in March and June 2014 at Dongtai Forest Farm, Jiangsu Province, China. There were 7 069 soil animals obtained from 90 soil samples by Tullgren funnel and 75% alcohol, which belong to 5 phyla and 9 classes. Diversity indexes of soil animals in five planting patterns were analyzed, including species abundance(S), diversity(H), evenness(J), similarity(Q)and density-group(I_DG), and the results showed that the diversity indexes of soil animals in five planting patterns had significant variation, and the dominant animal groups were Collembola and Acarina. H, j and I_DG indexes in G, GW and GR planting systems were higher than that in W and R systems, while Q index was lower. There was significant positive correlation between H and I_DG indexs. Season only affected diversity indexes of R pattern significantly. The Q index of G pattern was similar to GW and GR patterns, and it had significant variation with W and R patterns. So Ginkgo biloba agroforestry systems had significant effect on soil fauna communities, and interrcopping in Ginkgo biloba forest could protect the biodiversity of soil fauna.