Cutting machine with cutter detection device

The utility model provides a cutting machine with a cutter detection device. A light emitting device and a light receiving device are arranged in a cutting machine main body, the emitting end of the light emitting device is aligned at the receiving end of the light receiving device, an indicator lamp is arranged on the cutting machine main body, an indicator lamp circuit can feed back signals to a starting circuit of the cutting machine, a longitudinal guide rail is positioned on a cutting machine main body, a horizontal guide rail perpendicular to the longitudinal guide rail is arranged on the longitudinal guide rail, a cutter bench is installed on the horizontal guide rail, and a cutter is arranged on the cutter bench. The cutting machine has the advantages of being capable of monitoring in real time, convenient to maintain, high in control accuracy and the like.