GaN-based　dual-wavelength　light　emitting　diodes　(LEDs)　with　different　In　contents　in　the　wells　and　barriers　was　designed　and　fabrieated　in　our　experiment.　Electroluminescence　of　the　fabricated　LED　at　the　typical　driving　current　of　20　MA　has　two　colors,　blue　and　green　respectively.　The　ratio　of　the　intensities　of　the　green　light　to　the　blue　light　increases　with　increasing　driving　current.　At　larger　current,　the　blue　shift　of　the　peak　wavelength　of　the　green　light　was　greater　than　that　of　the　blue　light.　We　are　also　concerned　with　the　effect　of　polarization　and　non-uniform　carrier　distribution　in　the　active　region.　Using　coupled　method　of　simulation,the　calculated　data　were　consistent　with　the　experiment.