The utility model relates to a device for large core fiber terminal surface is handled, the device includes lock pin (3) of cross-under on supporting mechanism (7), lock pin (3) below is provided with an abrasive disc (1), lock pin (3) are ceramic lock pin, large core fiber (2) of planting in lock pin (3) and stripping the coat, said lock pin (3) are gone up the cover and are equipped with a coupling mechanism (5), have a guiding mechanism (6) to set up on coupling mechanism (5), and peg graft on this guiding mechanism (6) large core fiber (2) that just have the coat the utility model relates to a device for large core fiber terminal surface is handled, convenient operation and efficiency of grinding are good