【Background】Biodiversity is one of the important assets, linked to biological safety. Biodiversity including genetic, species and ecosystem diversities, can be reduced by environmental pollution, pesticide pollution, heavy metal pollution, seawater intrusion, human activity and other factors. During the Yellow River Delta (YRD) ecological economic zone construction, biodiversity protection is one of the key problems. 【Method】We aimed to create baseline data on soil diversity, using the Tullgren extraction method of soil cores, followed by sorting and identification of soilliving animal specimens. 【Result】At the YRD in Dongying halophytes garden, Acari and Collembola were the dominant groups. The former accounted for 78.95%, the latter for 14.03% of all individuals collected. Other frequent groups included Hymenoptera (3.57%) and Coleoptera (1.43%). The Number of Collembola individuals changed obviously, the distribution number had significant differences among the different samples. The change rule of the index of diversity of the soil fauna in the YRD was unified with the index of evenness. 【Conclusion and significance】Acarina, Collembola, Hymenoptera and Coleoptera formed the majority of soil animal diversity in Dongying halophyte garden soil, with many rare species. If we do not take effective measures, the rare species were at risk of extinction. We should pay more attention to the soil animal diversity, soil animal population distribution will reduce if salt stress increased.