The invention discloses a laser fiber solid-state lighting system. The system consists of a laser light source, a light guide fiber, a light expanding device and a fluorescent plate, wherein the laser light source is linked to an input end of the light guide fiber through a coupler; each output end of the light guide fiber is connected with the light expanding device respectively; the light expanding device is a laser beam expander to expand a laser beam; the fluorescent plate is arranged on a light exit side of each light expanding device; the beam emitted by the laser light source enters the light guide fiber through the coupler; light output by the light guide fiber is expanded by the light expanding device and then irradiates the fluorescent plate. The solid-state lighting system has the advantages that the high-brightness solid-state lighting light source with adjustable brightness can be obtained, directional solid-state lighting is realized by treating and collimating the light source, and a solid-state lighting light source of various application purposes is obtained by combining different laser light sources and a fluorescent plate material; long-distance conveying of light can be realized, a plurality of lighting lamps can be driven by one laser light source, and the system is particularly suitable for the field of safe solid-state lighting of an explosive environment.