On November 26th, the closed-door symposium themed “Smart City and Sci-tech China” was successfully held during the 2022 Global Artificial Intelligence Technology Conference (GAITC 2022). Experts and scholars from industry and enterprises in the CAAI smart city sci-tech volunteer corps conducted in-depth exchanges on their thoughts and suggestions in multiple aspects, including construction and operation of urban digitalization, industrial digitalization and upgrading, and optimal resource allocation in urban cities.