This paper utilized a wireless temperature sensing system to measure the temperature histories of tool and workpiece during cutting. It is essential to use a wireless sensing system to measure the temperature in cutting and monitor the cutting process due to tool movement, workpiece turning, network monitoring and safety consideration. The temperature sensing system includes the wireless transmitter and receiver, A/D and D/A converter, data processing software, and computer. The temperature histories for different feed rates and depths of cut were measured in real time during cutting. The data measured by using wireless temperature sensing system were also compared with these obtained from an infrared thermometer.