The 6th International Conference on Cognitive Systems and Information Processing (ICCSIP) in 2021 was held online from November 20-21. The conference invited many academicians and experts to share wonderful reports. The twelfth "Robot Intelligence" forum will be held on the afternoon of November 20, and the ICCSIP international conference series was held on the full antenna on November 21. The event was hosted by the Chinese Society of Artificial Intelligence, CAAI Cognitive System and Information Processing Committee, CAA Cognitive Computing and System Committee, Tsinghua University, Materials Science Gusu Laboratory, Nanjing Qingzhan Artificial Intelligence Research Institute, Co-organized by China Science and Technology Institute of Integrated Perception Intelligence and China Electronics Information Industry Development Research Institute.