Portable ECG system is used for long term monitoring of patients at the risk of life threatening cardiac arrhythmias. The idea of design work is to develop an algorithm for efficient QRS detection with low power consumption. The design will use OMAP 3530 application based processor and DSP core for ECG signal conditioning. After processing data, it will send to the clinical station through USB dongle or over the internet. The QRS detection algorithm uses matched filter to achieve optimized filtering and high SNR. This electronic document justifies the application along with designing scheme. Nowadays Aging societies are beginning to face the severe challenge of maintaining their health level with increasing costs of state-of-the-art treatments for a growing number of old patients. Providing affordable and high-level care is one of the biggest issues in public health care systems today. The older generation has never before had such huge amounts of personal income at its disposal, willing to track their personal well being and health beyond governmental support. Also, a growing number of life-style oriented individuals are beginning to use medical monitoring devices for recreational use in sports and daily life. Both aspects of the current societal situation results into one technological conclusion: a demand for mobile, yet powerful monitoring systems exists, serving both the patient in need by maintaining qualified but remote supervision. Both aspects particularly require the acquisition, fusion and analysis of a large number of physiological parameters by a light-weight, portable and power-saving device that is able to give qualified and autonomous warnings or suggestions to improve the level of fitness of its bearer. In other words, personalized health monitoring systems might in the future become as ubiquitous as current cell phones are today(1). Portable ECG is a hand-handled device that helps to monitor heart stroke rehabilitation patients, post- heart surgery patients or patients with critical heart disorder. Post heart surgery or post heart attack patients are kept under walking or aerobic exercise rehab. It is proven that this rehab reduces recurrent heart stroke by 17% and thus avoids re-hospitalization and even deaths in certain cases. During rehab period, it is very vital to monitor ECG of patients as it give precise state and condition of recovery in heart. In past, Holter devices are used to record ECG waveform. It is a portable device which is used for continuous monitoring of various electrical activity of the cardiovascular system for atleast 24 hours (often for