Abstract: Soil animal is a primary indicator of degradation degree of ecosystem and plays and important role on the ecological restoration. The research on soil animals in degraded ecosystem has become a hot spot in ecology study. The decrease in amount and diversity of soil animals caused by ecological degradation has hindered the material recycle and energy flow of ecosystem. It is expected to indicate the ecology’s degradation degree by changes in soil animal community structure, and to reconstruct the degraded soil with the powerful restoration ability of soil animals. The research on soil animals in degraded ecosystem should be further expanded.