Abstract: Catalytic cracking is the core technology of domestic oil refining industry，and it is an important pillar of the economic benefit of today's petrochemical enterprises and a key path of petrochemical transformation and development in the future. In this paper，the development history and industrial application of domestic catalytic cracking technology are introduced. And the development status and commercial application of catalytic cracking technology are introduced from the aspects of raw material feeding technology，reaction termination and separation technology，striping technology，catalyst regeneration technology，catalytic cracking reaction technology，and integrated innovative technology of catalytic cracking，so as to provide guidance for the selection of catalytic cracking technology and plant operation.

Key words: catalytic cracking, process technology, gasoline, diesel, propylene