The utility model belongs to the technical field of the optical communication, concretely relates to connector of being applied to 12 tunnel high -speed optic fibre, concrete technical scheme does: a high -speed fiber connector, closes the upper cover plate of lapping the top under including lower apron with the lid, and the upper cover plate is opened with lower cover joining of plates department has 2 locating holes and 12 line ball holes, and 12 line ball holes are placed in between 2 locating holes, and cartridges are downthehole at the line ball that corresponds respectively for 12 optic fibre of ribbon optical fiber, and 12 optic fibre arrange side by side, confirm the upper cover plate and the mounted position of apron down through 2 locating holes, guarantee that the location in each line ball hole is accurate, make things convenient for the line ball. Wherein, the upper cover plate is the silica -base material with lower the apron, the utility model discloses compact structure, the stable performance, optic fibre insertion loss is rateed lowly, and the optics uniformity of every optic fibre is good, and connector with low costs is fit for mass production.