A coffee bean roasting system for an electronic information device to execute an application program, so that a controller can calculate a bean temperature, a bean temperature information and a corresponding number based on raw bean weight information, roasting rhythm information and roasting degree information. One heating output information and one exhaust motor output information of each heating section. At the same time, the controller can be based on multiple heating section settings, respectively associated with the heating output information, exhaust fan output information, Based on the temperature rise time information, a baking curve (such as ROR curve, temperature-time curve) is calculated, and then the controller controls a baking bean device to automatically bake beans according to the baking curve, thereby making raw bean baking easier. At the same time, it can ensure the quality stability of baked beans to achieve flavor reproduction.一種咖啡豆烘焙系統,供一電子資訊裝置執行一應用程式後,使一控制器可基於生豆重量資訊、烘焙節奏資訊及烘焙度資訊,演算出一入豆溫、一下豆溫資訊及對應多個升溫區段的一火力輸出資訊與一排風馬達輸出資訊,同時,控制器可依據多個升溫區段設定、分別與各升溫區段設定形成關聯的火力輸出資訊、排風馬達輸出資訊、一升溫時間資訊,演算出一烘焙曲線(例如ROR曲線、溫度-時間曲線),進而使控制器控制一烘豆設備依據烘焙曲線進行自動化烘豆,藉此,可讓生豆烘焙變得更加容易,同時可確保烘豆品質穩定性,以達成風味再現。