Abstract: It is a kind of very special behavior to instigate and defend in the criminal law theory.It has similarity with the self-defence on the surface.The theory of criminal law of our country generally thinks briefly that it is a calculated crime to instigate defending,this is obviously lost biasedly.How to correctly understand relation between Instigate defending and self-defence,instigation of both sides behavior nature and responsibility for an offence of actor in defending to instigate,is significant in studying the self-defence and some other criminal law problem.

Key words: Instigate and defend, Self-defence, Persons who instigate , Instigate the relative people of the behavior