Automatic External Defibrillator AED 7000, which is a defibrillation device safe, portable and easy to use, can be applied in family and public place to give first aid for the sudden death symptom. The defibrillator can analyze the patient’s ECG, make a judgment for the patient’s cardiac condition and indicate whether the defibrillation is needed and the defibrillation strength, which not only enhances the success rate of defibrillation, but also reduces the injury of defibrillation to heart to the utmost extent. There is low requirement for the operator to use the device. The defibrillator will guide the operator to carry out defibrillation treatment via voice prompt step by step, give safety alert if the occasion arises, and can carry out early defibrillation treatment effectively as well as protect the operator farthest, being very applicable to the emergency treatment for the sudden cardiac death patient in family and public place. Automatic External Defibrillator AED 7000 recognizes ventricular fibrillation and other ventricular tachycardia and guides operators through the defibrillation process. When properly connected to a patient who is unconscious, not breathing, and without a pulse, the Automatic External Defibrillator AED 7000 analyzes the patient's heart rhythm, provides text and audio instruction prompts, determines if a shockable situation exists and, if appropriate, automatically arms the Shock button.