介绍了利用MSP430F149单片机作为主控芯片实现温度监控的原理及其实现。该系统以单片机和温度传感器为核心，实现对温度的检测、显示和报警。在温度检测的实现中，由于采用了适当的设计，有效提高了温度监控精度。温度显示部分采用动态显示技术，以较少的单片机引脚驱动3位数码管。报警部分，用户可以设定温度监控范围。-Introduced by using MSP430F149 microcontroller chip temperature monitoring as a master principle and its implementation. The system microcontroller and temperature sensors as the core, to achieve temperature detection, display and alarm. The temperature detection implementation, the use of properly designed and effectively improve the accuracy of temperature monitoring. Temperature display some dynamic display technology, with less microcontroller pin drives three digital control. Alarm section, the user can set the temperature monitoring range.