With the development of society and the continuous improvement of living standards, people pay more attention to their own health problems. However, the traditional health monitoring equipment lack of effective health management capabilities.In this respect, this paper describes the hardware and software design of a portable health monitor in which a 32bit lowpower processor which based on CortexM4 kernel was used as the control core and the RTThread realtime operating system as the software platform. Functions such as heart rate measurement, the forehead temperature measurement, step count and energy consumption monitoring,health task management can be realized through the system. Then through the closedloop management mode of health checkintervention program’s generationintervention programs execution monitoringintervention assessment (health rechecking) to improve and promote health constantly.