Longhorn beetles (Coleoptera: Cerambycidae) of selected Natura 2000 sites along the upper Odra River valley Longhorn beetles (Cerambycidae) are phytophagous insects belonging to order Coleoptera. Representatives of this group of insects are present in almost all land ecosystems, where they feed on plant material. However, the vast majority of species is ecologically connected with trees and shrubs, and hence with forest ecosystems. Conservation and protection of the remains of valuable riparian forest habitats: Ficario-Ulmetum minoris and Salici-Populetum was the reason of establishing in the valley of the Odra River a series of Natura 2000 sites. Research on longhorn beetles were carried out systematically in the valley of the Odra River in years 2013–2016. Material was collected on six Natura 2000 sites: SAC Graniczny Meander Odry, SAC Las koło Tworkowa, SAC Łęg Zdzieszowicki, SAC Żywocickie Łęgi, forest areas in the Prędocin region (a fragment of SPA Grądy Odrzańskie), and Las Odrzański (the southern fragment of SAC Grądy w Dolinie Odry). In total, 7302 imagines (5190 – field observations, 2112 – rearing), 256 pupae, 1668 larvae, and 690 feeding grounds were collected or observed. Altogether 92 species were identified, which comprises ca. 47% of all Cerambycidae species in Poland. During the research 2 species in Lower Silesia: Chlorophorus herbstii and Acanthocinus griseus, and 4 in Upper Silesia: Grammoptera ustulata, Anoplodera sexguttata, Pachytodes cerambyciformis, and Exocentrus adspersus were recorded for the first time. The collected material was analysed in term of frequency and abundance, trophic relations, and effectiveness of various method of Cerambycidae detection. Moreover, chorological, ecological, zoocenotic, and phenological analyses were conducted. Longhorn beetles communities of selected habitats and research areas were characterised, furthermore, based on presence of primeval forests relicts, rare, and stenotopic species, the valorisation of particular areas was made.