▎ 摘　　要

NOVELTY - The utility model claims a light-assisted graphene gas-sensitive sensing element, comprising an optical fibre, a graphene layer and the electrode, the optical fibre comprises cladding and located in the cladding of the fibre core, the optical fibre is provided with a gap; the fibre core is at least partially exposed by the gap, the graphene layer is covered on the gap, the light leakage in the core transmission to the graphene layer, the electrode connected with the graphene layer. The beneficial effects of the utility model are as follows: the optical fibre is combined with the graphene layer, designing a graphene type gas-sensitive optical control sensing component and does not need outside assistant heating, the detecting sensitivity is high, and it can accelerate the gas desorption, realizing real-time sensing.