The lasers with wavelengths of 633 nm and 1319 nm are taken as examples to investigate the laser coupled confocal system. In order to satisfy the design requirement that the convergence angle of two wavelength laser beams is less than 10° after focusing, two solutions are proposed. One is to use a reflector and a dichroic mirror to achieve a common optical path for the double wavelength lasers, and then to achieve confocal via off-axis parabolic reflection. The other is to use a combination lens to couple the dual-wavelength laser into a two-in-one combiner, which uses a single-mode fiber with a core of 9 μm and a numerical aperture (NA) of 0.14. A coupling lens group based on fiber and laser parameters is designed. Considering the second method, the experimental method and measurement results are given, and the coupling efficiencies of the two wavelength lasers are calculated. The experimental results show that the combined lens coupling method can achieve two-wavelength lasers combining with high coupling efficiency. The coupling efficiencies of the system are greater than 40%, 30% respectively when the input wavelength are 633 nm, 1319 nm. The experimental results meet the design requirements and achieve the desired results.