Red and blue laser plant lamp

The invention belongs to the technical field of plant growth equipment, and relates to a red and blue laser plant lamp. According to the red and blue laser plant lamp, a laser gain crystal is fixedlyconnected with a laser device, and the laser device pumps the laser gain crystal to generate laser oscillation; a frequency doubling crystal is arranged at one end of the laser gain crystal, and a frequency synthesis crystal is arranged at the other end of the laser gain crystal; a first laser cavity lens is arranged at an output end of the frequency doubling crystal, and a second laser cavity lens is arranged at an output end of the frequency synthesis crystal; a first beam expander is arranged at an output end of the first laser cavity lens; and a second beam expander is arranged at an output end of the second laser cavity lens. The red and blue laser plant lamp is simple in structure, large in illumination space and wide in range, and can simultaneously output red laser and blue laser;and the spectral range is