Abstract: Socrates' existing documents have the characteristics of variety and less credibility.So in order to study Socrates' legal thoughts,the author uses the methods of limiting materials to ensure the purity,and giving up comprehensiveness to improving authenticity.This essay takes Socrates' trial as analytic target,and demonstrates his legal thoughts from two aspects:the perseverant idea and the immortal declaration.

Key words: Socrates, trial, legal thoughts