Nowadays Internet is developing and is very popular using in VN. Internet is using in very different aspect such as: e-business, electronic library .., but there is a new aspect of using it in industry and in on-line education. This paper is shows the basic of application for making experiments aims for online education of technical programs via Internet. Especially, we want to analysis the trial system for supervising the measured data and control is through Internet by using “Visual Instrument”.