Lawyers should be embodied with integrated investigating and obtaining evidences in civil actions, and "investigation order", such indirect investigation to collect evidences, inten.

As a result, several distinctive features show up in the course of evidence in the trial court.

In modern legal countries, criminal evidence investigation on trial is the center of criminal trial, which the whole process of the criminal trial goes around, The investigation of physical evidence and documentary evidence is advanced in the way of the established procedure.

China s civil procedural act contains few regulations on evidence collection of the involved parties.

This paper analyses the deficiencies of the existing system of evidence collection in the procedural law in China, and then offers recommendations on upgrading.

Under the influence of the concept of the procedural justice, procedural structure and so on, there are great differences between the evidence collection system in common law countries and that in civil law countries in the scope of duty to produce evidence, operational mechanism, etc.