To solve the problems of health management and safety monitoring for elderly people in the community,this article designs and implements a smart community elderly care monitoring system.The system effectively monitors the indoor environment and water usage of the entire house through indoor detection sensors.The system uses a wristband to real-time detect the elderly's body posture,determine whether they have fallen,and monitor their heart rate and blood oxygen.By combining the lower computer,EMQX cloud platform,and PYQT upper computer,a smart community elderly care monitoring system with rich functions and simple operation has been created.