An apparatus for butting optical fiber cores, comprising: a butting plate with a plurality of butting devices, wherein each of the plurality of butting devices comprises a butting hole in a center of the butting device; a connector for butting the optical fiber cores, wherein the connector for butting the optical fiber cores is fixed on the butting plate and comprises a plurality of line connectors parallel to each other and a plurality of cord connectors parallel to each other, wherein each of the plurality of line connectors comprises a first slide bar, a first line fiber core connector and a second line fiber core connector, both of the first line fiber core connector and the second line fiber core connector being slidable along the first slide bar, an input end and an output end of the first line fiber core connector being connected to each other through a connection optical fiber, and an input end and an output end of the second line fiber core connector being connected to each other through a connection optical fiber, and wherein each of the plurality of cord connectors comprises a second slide bar, a first cord fiber core connector and a second cord fiber core connector, both of the first cord fiber core connector and the second cord fiber core connector being slidable along the second slide bar, the first cord fiber core connector and the second cord fiber core connector being connected to each other through a connection optical fiber; and a manipulator configured to grip the fiber core connectors (21, 22) and drive the fiber core connectors (21, 22) to move, characterized in that each of the plurality of butting devices further comprises: a plurality of arc-shaped holes distributed around a circumference of each of the butting holes, wherein two ends of each of the plurality of arc-shaped holes are far away from the butting hole; and a plurality of embossments provided, along radial directions of the plurality of arc-shaped holes and opposite to the arc-shaped holes, on an inner wall of each of the butting holes, wherein each of the plurality of embossments corresponds to a respective one of the plurality of arc-shaped holes. a butting plate with a plurality of butting devices, wherein each of the plurality of butting devices comprises a butting hole in a center of the butting device; a connector for butting the optical fiber cores, wherein the connector for butting the optical fiber cores is fixed on the butting plate and comprises a plurality of line connectors parallel to each other and a plurality of cord connectors parallel to each other, wherein each of the plurality of line connectors comprises a first slide bar, a first line fiber core connector and a second line fiber core connector, both of the first line fiber core connector and the second line fiber core connector being slidable along the first slide bar, an input end and an output end of the first line fiber core connector being connected to each other through a connection optical fiber, and an input end and an output end of the second line fiber core connector being connected to each other through a connection optical fiber, and wherein each of the plurality of cord connectors comprises a second slide bar, a first cord fiber core connector and a second cord fiber core connector, both of the first cord fiber core connector and the second cord fiber core connector being slidable along the second slide bar, the first cord fiber core connector and the second cord fiber core connector being connected to each other through a connection optical fiber; and a manipulator configured to grip the fiber core connectors (21, 22) and drive the fiber core connectors (21, 22) to move, characterized in that each of the plurality of butting devices further comprises: a plurality of arc-shaped holes distributed around a circumference of each of the butting holes, wherein two ends of each of the plurality of arc-shaped holes are far away from the butting hole; and a plurality of embossments provided, along radial directions of the plurality of arc-shaped holes and opposite to the arc-shaped holes, on an inner wall of each of the butting holes, wherein each of the plurality of embossments corresponds to a respective one of the plurality of arc-shaped holes. a plurality of arc-shaped holes distributed around a circumference of each of the butting holes, wherein two ends of each of the plurality of arc-shaped holes are far away from the butting hole; and a plurality of embossments provided, along radial directions of the plurality of arc-shaped holes and opposite to the arc-shaped holes, on an inner wall of each of the butting holes, wherein each of the plurality of embossments corresponds to a respective one of the plurality of arc-shaped holes.