Since the introduction of the EU Merger Regulation in 2004 there have been more and more public authorities, institutions and companies from several European countries asking for a new reform of European merger control. Hence, the European commission started a public consultation process by publishing the working paper “Towards more effective merger control” in 2013 and the white paper “Towards more effective EU merger control” in 2014. For this reason, this thesis provides a glance of the European Merger Regulation and deals with these two documents as well as with the corresponding statements of several institutions of the member states.In this consultation process, the extensive changes on the Digital Single Market of the EU and the following impacts on European merger control were not considered at all. Therefore, these changes and impacts and the resulting need for a reform are illustrated in detail, especially with regard to the revenue-based criteria of jurisdiction within the framework of the Merger Regulation and the challenges for substantive law. There have already been mergers on the Digital Single Market with great importance for the common market, which couldnt be investigated by the European Commission due to their specific characteristics. Against this background approaches and instruments to adapt the EU Merger Regulation are presented in this thesis.