After a brief definition of bibliometrics, its history and its fundations, this communication introduce how bibliometrics is especially suitable for supporting a Competitive Technical Intelligence process for companies. The bibliometric treatments in technological watch have the aim of offering to the experts a quick “reading grid” of great volumes of textual data. The textual data processing protocol for implementing bibliometric treatments are then shown : textual data collection, textual data division in statistical units, extraction and/or determination of the characteristic elements, graphical visualization of the statistical results, mapping and network drawing.