The ecology and technology of the communication industry are experiencing a fundamental change in recent years. As in 2019，the media industry of the United States has returned to rational development，and technological innovation has also gradually slowed down. The focus of media organizations is transformed into content-based and users-based ones. However，the development of different forms of media bears diverse characteristics. The trend of media giants ambitiously entering thecryptocurrency field has gradually become clear，and the rise of vertical niche social media platform broke the industry monopoly down. IP resources have promoted the reshuffle of the competition in the streaming media，and the music and film industry are integrating multiculturalism in its progressing. Based on relevant industry statistics，this article analyzes and categorizes the development of eight key industries，including newspapers and magazines，radio and television，the Internet and social media，publishing，movies and advertising，and games，with a focus on 5G communications and blockchain，thus reveal the development of the US media industry in 2019.