Recently, the main air blower in the catalytic cracking unit of Anqing Refining & Petrochemical Complex was commissioned successfully, which marks the successful completion of rotating equipment commissioning activities undertaken by SNEI for Anqing Oil Product Quality Upgrade Project, expected to be operational by the end of the month. The main air blower in the catalytic cracking unit is the core equipment of the unit, and even the whole refinery. The equipment features complexity in construction and difficulty in erection. Anqing Project Management Team carried out the inspection activities properly, and controlled the quality of each construction step, in order to make sure the commissioning of the main air blower will be completed successfully at one shot. A special technique was adopted for the commissioning of the main air blower. The construction personnel carried out monitoring and inspection for each step.