The 4th Joint Conference on Statistics and Data Science (JCSDS 2026) will take place July 11-13, 2026 in Guiyang, China. Jointly organized by the Chinese Association for Applied Statistics, Probability and Statistics Society of China, Association for Industrial Statistics Teaching, Business Statistics Society of China, China Medical Association’s Biostatistics Division and IMS-China, since its inaugural meeting in 2023, JCSDS has become one of the world’s largest gatherings in statistics and data science. The previous three meeting had attracted 1800-2,100 participants from 20+ countries. It typically has 6 keynote addresses, 100 invited sessions, and more than 50 contributed and poster sessions. The 4th JCSDS will be staged together with the IMS-China biannual meeting with special sessions dedicated to former IMS President Late Professor Peter Hall to mark his 10-year passing from us. In additional to usual scholarly talks, it will have forums for developing Statistics and Data Science in the era of AI, industry exhibitions, and extensive networking opportunities. Important Dates: Early Bird Registration Deadline: May 16, 2026 Registration Deadline: July 13, 2026 Contributed Talk & Poster Submission: April 30, 2026 Accommodation Booking Deadline: July 3, 2026 Detailed information on the scientific program, invited sessions, submission guidelines, registration, and accommodation will be released soon on the official conference website: https://jcsds2026.scimeeting.cn/en/web/index/31392. We look forward to welcoming you to the beautiful “Forest City” of Guiyang in July 2026 for another unforgettable JCSDS!