There are group of genetically inherited arrhythmia. These arrhythmia encompasses many disorders and among those long QT, short QT, catecholaminergic polymorphic ventricular tachycardia and Brugada Syndrome are renown ones. These set of arrhythmias are considered to be channelopathies. Diagnosis is based on genetic testing, electrocardiogram recording, clinical manifestations and family history. Novel treatments are in progress and have shown its efficacy in studies and researches.