In view of the daily needs, design an intelligent trash can with Arduino board as the controller. Use the Arduino controller module, the power module, the voice recognition module, the wireless transmission module, the ultrasonic module and the motor drive module to build the hardware circuit of the trash can. Achieve the function of the trash through developing the microcontroller, the selection of the module comparison and the program debugging. Experimental results show that the design can achieve the voice or mobile phone and other communication tools on the control of the trash and independent obstacle avoidance. It has a certain application value.