technological innovation is the key to core competitiveness. china digital has built a strong it r&d and operation team, with nearly 2000 software r&d personnel. it is the chairman of the "internet information services industry promotion working group of changfeng alliance" of the ministry of science and technology. in a real sense, it has put forward a saas service system with chinese characteristics, and built standards and norms suitable for china's it service operations with sps as the core. in terms of ict infrastructure construction, china digital has established professional data centers in beijing, guangzhou, suzhou, and other places, achieving interconnection between north and south telecom, and building a highly secure and reliable network environment with over 3000 operational equipment; by establishing joint laboratories with companies such as netapp and hp, computing pooling and storage pooling have been achieved; in the field of e-commerce, we have pioneered the development of an on-demand and personalized e-commerce platform. we have applied for more than ten technical patents and become a pilot enterprise for patent engines in beijing.