In modern industrial production, many places need the controlling of liquid level of the solution stored in the containers, when the solution is injected into the container, because the container is sealed and opaque, the operator can not observe whether the container is filled with liquid. This paper introduces a liquid medium fill detection apparatus control system based on single chip machine which can realize noncontact measurement and control by installing fill detection equipment at the connection part of the pipe in the case of not changing original container structure and which is easy to transform presently existing equipment. This system uses wireless communication technology and can intensively monitor and control the fill of many dispersive containers in certain region.