| Two questions arise author's attention to Systematic study on defensive activities.On one side,Whether it is reasonable that Unjustifiable defensive activities called"over-defense"? On the other side,whether the 20th article of the criminal law is reasonable? To move forward a single step,the auther arrives at the conclusion that the relationship between Justifiable defense and Unjustifiable defense are not invert but juxtaposed.They are subsidiary notions of"defensive activities".However,the notion of defensive activities does not attach a great deal attention,Systematic study on defensive activities is not only indispensable but also valuable.Considering such phenomenon, the writer is trying to combine theories and analyze it on the basis of the concept of"defensive activities".Specifically,This paper is divided into 3 chapters:The first one is efensive activitie's legislative development from the angle of the relationship between activities and norms,activities should be standardised by the norms.defensive activities are the common objection of civil code and penal code.The second one is to clear up the articles about defensive activities.The defensive activities are fixed by the civil code and penal code.The legislation mode of the defensive activities system comes from unified mode to the separated mode.The third one is not only trying to sum up the line of reasoning from defensive activities to standardized assessment but also give criminal comments on the concrete assortment. |