This thesis bases on the examination of Deleuze and Guattari’s some philosophical concepts to argue that existence means connections and we need an ontology of “and” that is able to reflect this meaning. In this thesis, the relations of things are grasped without introducing ontological hierarchy between them and traditional ontological concepts are introduced in order to refer the problem of connection. In that respect, the concept of machine and its correspondences in their philosophy are read in an ontological context, and some aesthetical and political results of ontology of “and” are emphasized.