随着计算机技术和网络技术的不断进步,电视媒体的信息化技术也取得不小的进展。因此对数字电视信号的攻击也越来越专业化。普通意义上的由工作人员对电视节目的播出进行监控的方法已经不能适应时代的需求。本文旨在通过对数字电视的介绍和数字点数网络功能的划分来构建一个数字点数信号传输安全防范系统。本文从基于攻击特征库的防范模式和基于内容标签的防范模式两方面来对此进行研究,最终提出了一种适合数字电视信号传输安全防范系统的体系建设。 With the continuous improvement of computer technology and network technology, the information technology of the television media has made notable progress. Therefore, attacks on digital television signals are becoming more and more specialized. In the ordinary sense, the way in which television programs are broadcast by staff members can no longer meet the needs of the times. The purpose of this paper is to construct a digital point signal transmission security system through the introduction of digital television and the division of digital point network functions. In this paper, based on the attack signature database-based prevention mode and content-based tag prevention mode, this study is carried out. Finally, a system for digital TV signal transmission security system is proposed.