High cholesterol, high blood pressure, diabetes, depression, obesity, smoking, poor diet, alcohol consumption, and no exercise are literally the major causes which have taken the life of many people in the world. All the parameters effect is the major slow points for Sudden Cardiac Death (SCD). As per the surveys conducted, there are 1 in 4 deaths caused due to a heart attack in the U.S alone. Ventricular Tachycardia (VT) is the deadly arrhythmias which can lead to SCD. Prediction of SCD using ECG signal derivative is a popular area of research. There are many papers published in this research. The recent development of a new algorithm on this topic helps to further research. In this work, we perform the overview of the ECG signal which is a way of measuring heartbeat rate and other features. Feature extraction of content areas in ECG and Classification algorithms for VF. We would see technique and methods based on ECG signal derivative by research in order to detect and predict SCD.