Based on years of experience on the design and construction of audio production and broadcast network,this paper first makes a comprehensive analysis on the general network security measures,then introduces in detail the specific security solutions such as the backup broadcast system as well as the secure interconnection between the intra-network and the public network for Henan Radio.

After making careful study of broadcasting media under network age, knowing the development of network broadcasting and aiming at transmission characteristics of network broadcasting, this essay points out factors restricting its development and prospects its development foreground.

The present paper sums u p the forms and the char-acteristics,advantages and drawbacks of network advertisements and re asons out the contributing factors of the speedy development of network broadcasting.

In the future,the network broadcasting will inevitably become a new survival mean and development direction of broadcasting.

Broadcasting is a procedure that some vertexes (knowing the information, named originator) call the others in broadcast networks.