The purpose of this review article is to provide readers with an extensive account on methane-coupling reactions performed in membrane reactors available in Literature up to 2000. The principles, advantages or disadvantages, and crucial problems of all kinds of membrane reactors used in methane coupling are discussed. Some areas such as solid oxide membrane reactors for methane oxidative coupling are treated less extensively, as it has always been reviewed by other researchers. More emphasis has been placed in catalytic proton or mixed proton and electron-hole conducting membrane reactors, as they have greater potentials and have received less attention in the literature.