The paper presents a preliminary study on discourse connectives (DC) in Czech. Aiming to build a computerized language corpus capturing discourse relations in Czech, we base our observations on current foreign projects with the same purpose. In this study, first, the different methods of linguistic analysis of the discourse structure and discourse connec- tives are described, next, the nature and properties of the group of DCs are analyzed and, finally, the procedure of the annotation of discourse connectives in Prague is presented.