for self-defense and excessive defense when the difference problem, scholars have studied a thorough comparison. But in the judicial practice, intentional injury cases usually accompanied by both fight each other. If the defendant is defence consciousness and to fight back, or for the purpose of fighting against each other, has been in the definition is a difficult problem. The author intends to combine the Institute of judicial practice in some practical cases, and due to the defense when the difference, and the defense when the relevant punishment were studied, the actual case analysis.
Key words: self-defense; convicted sentencing;