This book constitutes the refereed proceedings of the 8th CCF China Blockchain Summit on Blockchain Technology and Application, CBCC 2025, held in Shanghai, China, during December 18–21, 2025.The 26 full papers included in this book were carefully reviewed and selected from 102 submissions. They were organized in topical sections as follows: Blockchain Privacy Protection; Blockchain Data and Behavior Analysis; Blockchain Technology Innovation and Applications; Smart Contract; Blockchain Architecture; Blockchain Data Accesss; Blockchain Technology and the Digital Economy.
