After more than a decade，the global mobile internet has entered a stage of continuous deepening from a period of rapid growth. In 2018，rapid innovation in new technologies such as 5G，artificial intelligence，GPU，3D perception and bezel-less screen drives the transformation of the entire mobile internet industry chain. Domestic enterprises actively follow up technological hot spots，accelerate the layout to 5G，artificial intelligence，key terminal components and have achieved partial breakthroughs. In the future，China should focus on the weak links of the industry，combine the hot spots and trends of development，strengthen the tackling of core technologies，and promote the industry to flourish in an orderly manner.