On May 21, 2019, Huawei announced that its independently-developed operating system ““Huawei Hongmeng““ would be available in the fall of 2019 at the earliest, which immediately attracted wide attention from the public. in the context of the shrinking global smartphone market, Huawei's market share jumped to the second place in the global smartphone market in the first quarter of 2019. The development of the operating system may be directly related to the trade war between China and the United States. US sanctions on a number of Chinese technology companies have accelerated the pace of their technological self-reliance. As for Huawei's self-developed Hongmeng operating system, nearly 90% of Chinese enterprises believe that self-developed operating system is necessary, and more than 90% of Internet users and enterprises support Huawei to develop its own operating system. Analysts in iiMedia believe that the key to the development of self-research system is to solve the problem of ecological construction. Against the background of trade war, it is necessary to strengthen the research and development of core technologies. Launching a new operating system at a time when 5G technology is maturing is also a good development opportunity for Huawei.