With the development of the modern science and technology, the requirements of temperature control are higher and higher. In most cases, we need real-time detection of the environmental temperature and communications. In order to adapt to the rapid development of technology, temperature tester need to be more effective and accurate. This paper describes the system board based on a broad spectrum of MSP430 MCU temperature measurement instrument, the major technical indicators of the system and some related tests are discussed in detail. The results show that the system is accurate, sensitive, efficient, stable, reliable and suitable for the application of intelligent automated environment.