The utility model discloses a fiber melting disc. The fiber melting disc comprises a fiber melting disc body, wherein the fiber melting disc internally comprises a first tail fiber beam, a second tail fiber beam, a third tail fiber beam and at least one light splitter, the fiber melting body is respectively provided with at least one through hole, multiple first connection heads and multiple connection heads, the light splitter has an input port used for leading a light signal, a first output port used for providing the light signal to a monitor and a second output port used for providing the light signal for light communication equipment, one end of each tail fiber of the first tail fiber beam is respectively connected with the input port, the other end penetrates through the through hole, one end of each tail fiber of the second tail fiber beam is respectively connected with the first output port, the other end is respectively connected with the first connection heads, one end of each tail fiber of the third tail fiber beam is respectively connected with the second output port, and the other end is respectively connected with the second connection heads. The fiber melting disc has the light splitting function and can provide the light signal for the monitor in real time for monitoring light intensity change.