By using low-power Toshiba microcomputer TMP86FH09ANG and capacitive touch-detecting chip CY8C21534, a control and display system of infrared cooker was designed. Its input and output are touch-sensitive buttons and LED respectively. The chip CY8C21534 can sense any changes of the capacitance of the touch-sensitive buttons. According to keyboard inputs, the corresponding operations such as power on/off, plate selection, fire adjustment, timing and child locker can be realized. The diagram of hardware circuit is presented in detail, and the software functions are introduced. This design can be reference to the development of related products.