This volume constitutes the proceedings of the 18th International Conference on Services Computing 2021, held as Part of SCF 2021 in December 2021 as a virtual event due to COVID-19.
The 5 full papers and 2 short papers presented in this volume were carefully reviewed and selected from 21 submissions. It covers the science and technology of leveraging computing and information technology to model, create, operate, and manage business services.