▎ 摘　　要

NOVELTY - The utility model relates to a mesoporous graphene based mesoporous graphene field effect transistor biosensor, comprising a substrate arranged on the base layer, said mesoporous graphene layer is alternately provided with a group of source and drain electrode, said a group of sources. mesoporous graphene layer between the drain electrode is provided with a biological recognition layer, the bio-recognition layer is provided with a reference electrode, said a group of sources, between the drain electrode and the bio-recognition layer forms a conductive channel, the reference electrode and the conductive channel of the measured sample solution inserted in connection; it greatly reduces the manufacturing cost of the biosensor, mesoporous graphene field effect transistor biosensor, opening the band gap of graphene, has a large current switching ratio, a very small amount of biomolecule can make conductivity of graphene conductive channel to produce a significant response, which greatly improves the sensitivity of detection.