This book presents a literature review of the soil biodiversity problems of the European Farmers and the strategies developed to solve them. The aspects considered in this revision book are: - The importance of the soil biodiversity in the design of cropping systems. - Crop rotation and its effect over the edaphic fauna. - The effect of tillage on the communities that inhabit in the cultivated soils. - The ability of soil fauna to regulate the proliferation of pathogenic fungi related to certain crop diseases. - Different types of bacteria that promote plant growth. - The relationship between soil contamination and biodiversity. - The effect of organic and synthetic fertilizers on the biodiversity of the edaphic fauna. - The development of alarm systems that allow the early detection of pathogens. - The increase in soil quality associated with the use of cover crops. - The use of trap crops to reduce the use of pesticides while maintaining production and quality. This work was funded by the European Commission Horizon 2020 project SoildiverAgro [grant agreement 817819].