The invention discloses an optical network signal enhancement emission circuit. An optical power signal feedback compensation circuit detects an optical power signal of an optical emitter E1, and inputs the optical power signal into an amplitude modulation circuit after comparing the optical power signal with an optical power reference signal and amplifying the optical power signal; the amplitudemodulation circuit receives an electric power signal and the signal input by the optical power signal feedback compensation circuit, couples the electric power signal with the signal, and then carriesout amplitude modulation by utilizing a composite circuit consisting of triodes Q1 and Q2, an adjustable resistor RW and a triode Q3; and finally, an amplification coupling output circuit applies anoperational amplifier AR1 to amplify, and simultaneously, a signal amplified and output by the operational amplifier AR1 and a reference potential output by an operational amplifier AR2 are input intoan adder AR3 together to be coupled and output. Stability of the optical power signal emitted by the emitter E1 is ensured; the problem of signal weakening in the long-distance transmission process of an optical network signal is solved; by regulating break-over voltages of the triodes Q1, Q2 and Q3, a resistance value of the adjustable resistor RW1 can be regulated, so that different types of optical power signals can be regulated; and the optical network signal enhancement emission circuit has very high development value and practical value.