A carbide tool cleaning and coating production line and a method. The production line includes a cleaning and a coating device. A manipulator is disposed between the devices. The cleaning device includes a support frame, cleaning mechanism, and drying mechanism sequentially disposed under the frame, which is connected to a moving mechanism connected to a lifting mechanism capable of being connected to a tool fixture bracket, which is configured to accommodate the tool fixture. The coating device includes a coating chamber, a plane target mechanism disposed in the coating chamber, a turntable assembly also disposed in the coating chamber, which is capable of being connected to a plurality of tool fixtures, and the tool fixture is capable of rotating around an axial line of the coating chamber under the driving of the turntable assembly, and rotating around an axial line thereof at the same time.