An investigation into the relationship between argumentation and disjunctive logic programs with explicit negation (EDLP) is conducted.By employing the coherence principle,an argumentation-theoretic framework for EDLP is presented,in which various forms of argumentation can be performed.In particular,a skeptical semantics Acc is introduced in a natural way.To provide a more suitable form of argumentation,a less skeptical semantics Mod is also defined which naturally extends the well-founded model.