Abstract: Due to the integration of the current experimental teaching equipment, many experimental instruments are made into a “black box”, which makes it difficult for the experimental teaching to achieve the expected goal of engineering training. In this paper, the experiment of the Michelson interferometer is extended to “the design and implementation experiment of wavelength meter based on Michelson interferometer”. The experimental design scheme, system calibration method and unknown laser wavelength inversion algorithm are proposed. The laser wavelengths of two known output wavelengths are measured by inversion. The measurement results are close to the nominal value. In the process of students’ operation, the experimental system is built by students themselves according to the experimental principle, which integrates the experimental principle, system construction, data measurement, data analysis and report writing, practices the “new engineering” talent training concept, and helps to achieve the “new engineering” talent training goal.