The invention discloses a reflective type wireless optical-fiber communication system. The reflective type wireless optical-fiber communication system comprises a plane mirror, a convex lens, a reflective type modulator, a silicon light cell panel, a demodulation and amplification circuit and a loudspeaker. Sunlight irradiates the plane mirror, plane mirror reflected light forms a convergent light beam through the convex lens, the convergent light beam irradiates the reflective type modulator to form an optical carrier wave of an optical modulation signal, the optical carrier wave irradiates the silicon light cell panel, the silicon light cell panel generates a corresponding electrical signal to be connected to the demodulation and amplification circuit, the signal after demodulation reduction and amplification is connected to the loudspeaker through the demodulation and amplification circuit, and the loudspeaker can play an amplified sound signal. The reflective type wireless optical-fiber communication system has the advantages of low cost, energy conservation, environmental protection, the wide frequency band, simple and flexible erecting, high anti-interference performance, good transmission secrecy performance and the like.