The appearance of deductive film-works like "The Murder Case By a Steam Bread" has triggered contentions over copyright in the law sphere.

After summarizing foreign legislative models and views proposed by scholars of our country and probing into the value orientation of copyright law,we concluded that illegal deduction works should be protected by copyright law rather than by unjust benefit system.

This article studies the belonging of net works copyright and clarifies the responsibility of copyright infringement by understanding the legal permission and reasonable utiluzation of the net copyright.

The analysis of copyright of network works;

Start from nature and scope of network works,this paper analyzes on the issue of information network propagation authority and the copyright owner legal license authority in network copyright,makes further approach to related issue in the network environment such as expressing form ,responsibility shoulde red and tort litigation of infringing the copyright and so on.

The challenge of the network works on fair use and the relationship between network technology and fair use system present new requirements that both fair use system and network technology bring into play to rebalance copyright under the network environment.

Generally speaking online works (including both the works that are to be put online or those created online) satisfy the necessary components for traditional works and the special legal requirements for online works.