. Technology of pervasive computing can be applied in daily activities such as sport, education, game and public interest such as public health. In healthcare system, the issues about high cost and errors in reviewing of patient record are still a major topic for healthcare provider (hospital). The technology of pervasive computing was developed to address these issues. This study will discuss the technology to support healthcare system. The main purpose is that users need to know the technology and its characteristics in order to prevent fatal actions in its use. The integration of different kinds of technology such as mobile devices, wireless networks, sensors, and wearable technologies is able to give better healthcare service than the technology itself.