Abstract: The industrial application and calibration of MIP technology and its special catalyst CRMI-2 in 3.5Mt/a FCCU of SINOPEC Shanghai Petrochemical Company were introduced. The calibration results show that using MIP technology and special catalyst CRMI-2 and hydrotreated heavy oil feedstock, the process capacity of the unit exceeds its design value, and product yield distribution is better than design. Under the calibration conditions of maximum working load of 105.72% and 110.11%, the gasoline yields reach 45.16% and 46.89%, respectively, about 2.66 and 4.39 percentage points, higher than its design. The liquid product yields are 81.36% and 81.85%, respectively, about 0.56 percentage point and 1.05 percentage points, higher than the design value. The coke yield is significantly reduced. The olefin of stabilized gasoline is 24.4% and 23.2%, respectively, lower than its design value. The quality of the stabilized gasoline meets the design objective.