Abstract: With the vigorous development of new quality productive forces，petroleum and petrochemical enterprises have actively responded to national strategies，focusing on accelerating new industrialization and advancing the construction of a manufacturing powerhouse，quality-driven economy，cyber powerhouse，and digital China. While progress has been made in localized scenarios and specific processes，challenges persist，including fragmented digital technology integration，insufficient coverage of core scenarios，and limited value realization. This study addresses the operational demands of core scenarios in petroleum and petrochemical plants by proposing a unified data architecture，platform foundation，and ten application modules. A holistic smart factory system framework based on the “Data + Platform + Application” model is established，and future development directions are explored. The implementation of this system has optimized operational models，enhanced work efficiency，reduced labor costs，and improved production safety and quality reliability，thereby providing a robust foundation for cultivating core competitiveness in enterprises.