High power SMA905 fibre optic connector end face with grooves is to effectively remove the epoxy adhesive and other stains around the fibre, to avoid the laser heat return from the end face of the fibre is directly transferred to the connector, thus keeping the heat source away from the fibre, reducing the possibility of the fibre being burned, enhancing the service life of the fibre, and completely meet the use of laser welding, cutting and other higher power transmission needs.