1、In ancient Chinese societies, testimony of witness, as well as affidavit, was recognized as a kind of legal evidence.

2、In this article, the author makes a preliminary research on how to inquire testimony of witness at court, in order to insure the admissibility and authenticity of evidences.

3、Specially in the Anglo-American, testimony of witness enjoys the core status in the evidence system, which focuses on the old saying of "NO witness NO LAWSUIT".

4、Through analyzing the attribute and trial of the testimony of witness, the author alleges that its essential manifestation is oral testimony.

5、Judges and jurists around the world draw the same conclusion that wrong identification and testimony of witness results in false judgments which are much more serious than other causes.