Recently, CAS Key Laboratory of Quantum Information, led by Academician Guo Guangcan of the University of Science and Technology of China, made important progress in multiphoton nonlocality research. The laboratory Li Chuanfeng, Huang Yunfeng research group successfully prepared the world's highest fidelity of the six-photon entangled state, and for the first time validated the six-photon quantum nonlocality, the research results published in the December 23rd "Physical Review Letters" Selected by the journal for editorial essays. On the one hand, Li Chuan-feng and Huang Yun-feng put forward the universal construction method of multi-body GHZ paradox; on the other hand, based on the self-developed "beamlike" type of entangled source, the "sandwiched" entangled source is ingeniously designed. The new type of entangled source has better symmetry so that various indicators of entangled photon pairs surpass the previously reported in all multiphoton experiments. The fidelity of the six-photon GHZ state prepared by the research group thus reached as high as 88.4%, creating the highest level in the world. Based on the above research results, the research team verified the six-photon GHZ type nonlocality. This work sets a new standard for the fidelity and brightness of multiphoton experiments and will greatly facilitate the study of fundamental issues of quantum communication networks, quantum computing and quantum physics. Quantum computing is still in its early stages of development. Quantum computers, such as classical computers, that have universal functions can eventually succeed, and remain unknown to the entire scientific community. Pan Jianwei hopes 2-3-30 years to achieve 20-30 qubits related operations; 10-100 years to achieve 50-100 bits of quantum-related manipulation, you can do some supercomputer can do things. Quantum simulation may have good results in 5-10 years. At the moment, quantum precision measurement is the fastest-growing area for economic efficiency. Quantum precision measurement can be widely used in time, magnetic field, a variety of physics measurements, quantum navigators if the accuracy of 10 negative 12,100 days after the accuracy of the order of meters, you can conduct autonomous navigation. In the application, the use of quantum simulation and other technologies, enabling submarine autonomous navigation, autonomous navigation of the aircraft.