Zhang Yunyong, member of the National Committee of the Chinese People's Political Consultative Conference and president of China Unicom Research Institute, said that domestic and international communication operators represented by China Unicom, China Telecom and China Mobile are exploring the introduction of blocks in the latter 5G and sixth generation mobile communication (6G) networks. The chain technology utilizes the cooperation mechanism of the blockchain to promote the flattening of the communication network, and at the same time improve the cooperation efficiency between the communication network service nodes and promote the network cooperation capability between different operators. This will make the future communication network more stable, safer and more flexible. The network capacity, service efficiency and quality will be greatly enhanced, and the Internet of Everything will become a reality. Zhang Yunyong said that domestic and foreign operators are also actively trying to use blockchain technology to improve the construction, operation, maintenance and management capabilities of 5G networks. By establishing a collaboration mechanism based on blockchain technology, communication operators work closely together to improve the network coverage capability, network service capability, network operation and management capabilities of the communication network, and at the same time reduce the construction and operation and maintenance costs of the communication network.