The structure of the conclusion sections in Research Papers (RPs) is of significance in academic writing. The conclusion section in spite of providing an outline of the article, states other essential components, such as recommendations, implications and statements of possible lines of future research. This paper analyses the conclusion parts of Persian and English Research papers published in international journals. To meet this end 20 RPs were selected from two fields including Civil Engineering and Applied Linguistics. The Conclusion sections of the papers were examined for their moves based on Yang and Allison's (2003) model of moves. The frequency analysis of the moves showed slight differences among the moves employed and with regards to the Chi-Square tests, no significant differences were observed between the Conclusion sections of Applied Linguistics and Civil Engineering RPs regarding the moves employed as well as between Persian and English RPs. The study yields a richer understanding of the conclusion structure of research articles and offers ESP/EFL instructors and researchers insights which can be used in the instruction of the conventions or expectations of academic writing. Novice writers and non-native students can benefit from it, mainly because it helps them eliminate their writing dilemmas and assists them to take part in international discourse communities.