General　waverneters　based　on　Michelson　interferometer　only　have　a　moving　arm,　which　cann＇t　more　multiply　optical　paths＇　differences,　and　is　unable　to　avoid　dispersion　from　a　beamsplitter.　Commonly,　the　moving　mirror　driven　by　a　direct　current　motor　and　a　ball　screw　have　some　disadvantage,　such　as　heavy　weight,　unstable　motion.　In　the　paper,　a　mm　better　optical　layout,　and　configuration　and　a　driving　method　of　moving　mirrors　are　proposed.　A　newly　optical　paths　layout　of　a　wavemeter　based　on　Michelson　Interferometer　is　present,　including　two　moving　mirrors　for　forming　optical　paths＇　differences,　a　beamsplitter　for　splitting　a　light　into　a　transmitted　light　and　a　reflected　light,　two　reflectors,　and　a　reference　laser.　It　has　two　moving　arms　and　can　eliminate　dispersion　from　the　beamsplitter.　According　to　Doppler　effect,　how　to　form　the　interference　fringes　in　the　photodiodes　is　analyzed　and　formulated.　The　Doppler　effect　appears　with　motion　of　the　moving　mirrors.　Consequently,　alternately　dark　and　bright　interference　fringes　are　generated,　then　received　and　converted　into　the　electronic　signals　by　the　photodiodes.　It　is　concluded　that　the　electronic　signals　involves　the　wavelength　of　a　light　and　the　velocity　of　the　moving　mirror　by　investigating　the　Doppler　effect.　The　structure　of　the　moving　mirrors　is　clarified.　The　moving　mirrors　are　made　of　the　two　pyramid　prisms　which　are　placed　symmetrically　on　the　driving　motor.　A　controlling　system　for　keeping　the　moving　mirrors　in　constant　velocity　is　designed.　In　order　to　make　frequencies　of　electronic　signals　from　interference　fringes　stable,　the　moving　mirrors　must　move　in　a　uniform　speed.　The　voice　coil　motor　(VCM)　drags　the　moving　mirror　to　and　fro.　VCM　in　uniform　motion　is　realized　by　an　optical-mechanical-electrical　closed-loop　feedback　system.　The　Doppler　frequency　difference　of　the　reference　laser　is　the　standard　of　the　system.　The　PID　controller　comprising　parallel　proportional-integral-differentiaI　operational　circuit　regulates　the　velocity　of　VCM.