The present application discloses a roasting distribution measuring device for coffee beans, which mainly comprises a casing, a micro processing unit, an image capturing unit, a light emitting unit and a display unit. The housing has a first end and a second end, and an accommodating space exists between the two ends, and the second end is provided with a group of coffee beans to be measured. The micro processing unit and the image capturing unit are both disposed in the accommodating space, and the image capturing unit is electrically connected to the micro processing unit. The light-emitting unit is disposed in the accommodating space, and has at least one light projector and a circuit board electrically connected to the light projector. The circuit board is electrically connected to the micro-processing unit, and the light exit port of the light projector faces the second end. The display unit is disposed at the first end and electrically connected to the micro processing unit for displaying the measured measured baking profile.本申請揭示一種咖啡豆的焙度分佈量測裝置,主要包括一殼體、一微處理單元、一影像擷取單元、一出光單元及一顯示單元。殼體具有相對的一第一端及一第二端,兩端間存在一容置空間,第二端供壟罩一群待量測的咖啡豆。微處理單元和影像擷取單元均設置於容置空間內,影像擷取單元與微處理單元電性連接。出光單元設置於容置空間內,具有至少一光投射器及一與光投射器電性連接的電路板,電路板與微處理單元電性連接,光投射器的光出射口朝向第二端。顯示單元設置於第一端且與微處理單元電性連接,用以顯示所量測得的一焙度分佈曲線。