This study examines the prospects for and challenges against reforming the UN SecurityrnCouncil based on the 2005 Reform Proposal and the three main reactions that followed (thernG4, the UFC and the AU Proposals). The findings are based on review and analysis ofrnrelevant secondary sources in the main. The study found that the Security Council is in needrnof reform since it lacks representativeness in its membership, accountability, transparencyrnand democracy in its working methods compounded by the anachronistic nature of vetornpower. Almost all member states of the UN agreed on the need for reform so as to enable thernCouncil to reflect the 21st century realties rather than the period right after the end of thernWWII. However, they could not come up with one common proposal to this end. Countriesrngive precedence to their national interests rather than genuinely striving to bring aboutrnchanges in the Councilâ€™s mode of operation. It is due to this that three major proposals camernto the fore following the 2005 Reform Proposal.rnAll the proposals examined by this study advanced their respective positions on how tornreform the membership and working methods of the Council and veto power. This lack ofrnunanimity greatly hampers the effort of reforming the Council. The study showed thatrnbringing changes in the membership and veto power of the Council require amending the UNrnCharter, which is really impossible even to go beyond the first step of gaining two-thirdsrnmajority in the General Assembly (128 out of the current 192 UN member states) under arncondition in which member states are divided on the issue. In addition, the position of thernPermanent Five is an insurmountable impediment in the attempt to amend the Charter sincernthe opposition of one permanent member curtails the effort. This indicates that the position ofrnthe permanent members is a cornerstone in reforming the Security Council. Even if thernpermanent members support to reform the Council, it is nominal since they put variousrncriteria on how to bring about reform so as to keep their own interests. In this respect, thernfeasibility of the proposals which call for reforming membership category and veto power is farfetched. Meanwhile, there is the possibility to effect changes in the working methods of the Council since doing so does not require the awkward process of amending the UN Charter. Finally, the study comes up with the conclusion that it is unlikely to reform the membership of the Council particularly the permanent category and veto power in the near future