A medical device with mixed-color backlight includes a processing unit, a PWM unit, a backlight unit and a medical measuring unit. The PWM unit is electrically connected to the processing unit. The backlight unit is electrically connected to the PWM unit. The measuring unit is electrically connected to the processing unit. A data is measured by the processing unit through the measuring unit. The PWM unit is controlled by the processing unit according to the data and is used to drive the backlight unit. The backlight unit includes a first-color LED and a second-color LED. The backlight of the medical device is mixed color.一種具有混光顏色背光之醫療裝置,包含一處理單元、一脈寬調變單元、一背光單元及一醫療量測單元。該脈寬調變單元電連接至該處理單元。該背光單元電連接至該脈寬調變單元。該醫療量測單元電連接至該處理單元。該處理單元藉由該醫療量測單元量測得一數據資料。該處理單元依據該數據資料控制該脈寬調變單元以驅動該背光單元。該背光單元包含一第一顏色之發光二極體及一第二顏色之發光二極體,則該醫療裝置具有混光顏色背光。100‧‧‧蜂鳴器200‧‧‧調整單元300‧‧‧醫療量測單元400‧‧‧電源供應單元500‧‧‧開關單元600‧‧‧處理單元700‧‧‧脈寬調變單元800‧‧‧顯示單元900‧‧‧背光單元910‧‧‧第一顏色發光二極體920‧‧‧第二顏色發光二極體
