We have developed a portable jogging monitoring device and studied its application for health management. This device is a micro processor based system with some sensors necessary to monitor the health condition of the user during jogging, that is, a heart rate sensor, a GPS sensor and a physical activity sensor. We also have developed PC based health management software, that receives jogging data from the portable device and stores it as a long term jogging trend data. From these long term data it can feedback the distance completion of jogging on the virtual course. Moreover it can show the trend of jogging time, distance, average heart rate and the user can know his/her own health condition.