This paper briefly illustrates and compares the characteristics and applied-range upon the five kinds of technical fact ascertained mechanisms in Chinese intellectual property trials（Entrusted judicial expertise，litigation with expert-assistants’participatation，technical investigator system，technical consultation and the trial which allow professional jurors to participate in）. In order to realize the judicature leading in tech-fact identification and materialize the court trial，the “Expert Jury System” should be recommended and practised in intellectual property trial，besides，the “judge-led fact identification” should be adhered to avoid the transfer of judicial authority. Based on the principle of judicial openness，the “covert technical investigation opinions” should be interpreted as the “private cross-examination and debate”，however，the technical investigation opinions which were adopted should be revealed to the public in the judicial documents.