The article discusses the results of study of Rosson 9 archaeological site with the Corded Ware culture context, that locates at the southern coast of the Gulf of Finland, Baltic Sea. Analysis of stratigraphy and spatial distribution of finds and anthropogenic structures allow considering here several occupation phases divided by uncertain time intervals. A recognized finds concentration can be interpreted as traces of rectangular on-ground construction. There are pottery types that are very similar to vessels from different parts of Eastern and Northern Europe, and also pottery that combine peculiarities of Corded Ware and Combed Ware tradition (Estonian Combed Ware). Basing on typology Corded Ware materials from Rosson 9 can be dated widely within the III ca. BC.