Over the span of 635 days, HarmonyOS has transitioned from overcoming initial adaptation challenges to achieving ecological prosperity, encompassing a diverse range of devices including mobile phones, PCs, wearables, and industrial applications. Today, HarmonyOS 5 is integrated into over 40 Huawei terminals, with the number of compatible devices surpassing 1 billion. Moreover, there are now more than 30,000 HarmonyOS applications available. Beyond surmounting technical hurdles within operating systems, HarmonyOS has emerged as a cornerstone in China's technological intelligence development. Through collaborative efforts with developers and partners, HarmonyOS has witnessed significant achievements in ecological construction, encompassing partnerships with leading applications, fostering user habits, and fostering cross-industry innovation. These milestones underscore the concerted push by China's technology sector towards intelligent transformation.