Abstract: Infrared automatic controlled hand washing utensil is devised for the need of no-touch-cleaning.It has discussed the whole processes of its electrocircuit design and debugging,3D exterior design and the batch production.The main principles are by the emission of infrared ray and reflecting induction,through signal processing to identify if the infrared ray has been blocked by something or not.Then the controllable silicon will control the electromagnetic penstock’s turn on and turn off.The photoelectricity coupling technic will make the strong and feeble electrocircuits separate completely and protect controlling electrocircuit.