International audience Contemporary of the beginning of western Mediterranean neolithization, Peiro Signado is one of the oldest Neolithic settlements in south of France. The site shows the installation, on the coast of Languedoc, of small pioneer groups with clearly Italian origin. The lithic industry is characterized by a bladelet production. Use wear analysis brings to light the diversified forms of Neolithic economy corresponding to a technical system transported by the first settlers. This paper presents the first results of use wear analysis which will be entirely published in the monograph of the site