This book constitutes the refereed proceedings of the 4th International Conference on Cognitive Computation and Systems, ICCCS 2025, held in Chengdu, China, November 22–23, 2025.

The 79 full papers presented in this book were carefully selected and reviewed from 199 submissions. The papers are organized in the following topical sections:

Part I: Cognitive computing and Multimodal information processing

Part II: Intelligent robotics