This design introduced the PLC and touch screen installed in the filling system’s electrical control. In this design, the composition of the filling system, process and operation of electrical control requirements and described in detail the use of PLC to electric control of the design process, combined with touch-screen technology completed the design of electrical control. The bottled water designed to wash, filling, Capping machine (three-in-one filling machine) as an example, highlights the SIEMENS S7-200 PLC and touch screen technology in the industrial design of the powerful advantages and prospects for the development of inestimable.