This system must be a reasonable feature set, including hardware and software development platform choice. Infrared communication needs can be used for many short-distance data transmission and non-contact situations, which has a clean, stable transmission of information, information safe and easy to install and so on. Single chip microcomputer has a small size, high integration, light weight, low price, low power consumption and other prominent features, especially low power consumption, but also make the power supply is small, light quality. In this paper, single-chip infrared communication system, mainly for the infrared transmitter and receiver respectively hardware and software designed which make the system adaptable to the external environment is very strong.