The 8th International Conference on Computational Intelligence and Intelligent Systems (CIIS 2025) aims at addressing advances in research on computational intelligence and intelligent systems, covering topics ranging from enabling technologies to emerging applications and industrial experiences, to encourage researchers and practitioners to exchange and share their experiences. Authors are solicited to contribute original, unpublished contributions in all aspects of computational intelligence. We look forward to welcoming you attend the conference in Okayama, Japan during November 21-23, 2025. Publication: After the double-blind reviewing, accepted and registered full papers can be included and published in CONFERENCE PROCEEDINGS. Please download template here: Word, Latex. CIIS conference proceedings for last 7 years have been successfully indexed by Ei Compendex and Scopus three months after proceedings' online. Submission ways: The online submission system is opened here: https://www.zmeeting.org/submission/ciis2025 Call for Papers: *Artificial life/Being *Automated Planning *Bayesian Networks *Chaotic Systems For more topics, please visit: http://ciis.net/call.html Submission Types below: *Submitting an Abstract: Presentation Only *Submitting a full Paper: Publication and Presentation Call for Special Sessions: Special-session proposals should be submitted by the prospective organizer(s) who will commit to promoting and handling the review process of their special session as Chairs or Co-Chairs of the event. Proposals should include the following information: *Title of the Special Session *General information of organizers (mail address of main contact person, biodata) *Brief description of special session *Scope and topics of of the special session *Names of potential participants, such as program committee members and invited speakers *Please send your proposal to ciis_info@sciei.org. Contact: Conference Secretary: Amber.XJ.Lin E-mail: ciis_info@sciei.org