The invention relates to a multi-
beam laser condensation transmission device. A conical tip of a reflection
pyramid is arranged at the central position of a supporting column, the other end of the supporting column is arranged at the central position of a light incidence end face of a
laser transmission condensation bar, and the
central line of the reflection
pyramid coincides with the
central line of the
laser transmission condensation bar. With regard to
laser beams entering the lateral surface of the reflection
pyramid, a plurality of
laser beams entering the input end face of the laser transmission condensation bar perpendicularly are reflected by the reflection pyramid, enter a condensation section through a laser transmission section, is transmitted along the
central line of the condensation section straightly, and enters a light shaping section through the condensation section; other light enters a
hyperboloid of the lateral surface of the condensation section to form total reflection, is transmitted to the output end of the condensation section in a broken line mode formed by multiple total reflection, is gathered to the output end of the condensation section with small
divergence angles, and then enters the light shaping section; therefore,
light energy concentration of the multiple
laser beams during transmission is achieved. The multi-
beam laser condensation transmission device has the
advantage of being simple in structure, small in size, low in cost, high in condensation efficiency and the like.