Ecological infrastructure (EI), which is a planned network of high-quality natural and semi-natural elements designed and managed to provide ecosystem services, has the potential to ensure rich and resilient biodiversity. Within the Action Plan for the Swiss Biodiversity Strategy of the Swiss Confederation, the pilot project known as “ValPar.CH – Values of the ecological infrastructure in Swiss parks” aims to analyse the values and benefits of EI at two levels: across Switzerland, and in four parks of national importance (Jurapark Aargau, and Gruyère Pays-d’Enhaut, Pfyn-Finges and Beverin nature parks). The aim is to contribute to reducing biodiversity erosion as currently observed. This objective is met by developing outputs for different stakeholders (scientific papers, recommendations, data, policy tools).