The invention relates to a catalytic cracking catalyst, which contains a modified Y-type molecular sieve, an alumina binder and clay, wherein the modified Y-type molecular sieve contains 5-12 wt% of oxidized rare earth and 0.1-0.7 wt% of sodium oxide, and has the total pore volume of 0.33-0.39 mL/g, the pore volume of the secondary pores with the pore size of 2-100 nm in the modified Y-type molecular sieve accounts for 10-25% of the total pore volume, the unit cell constant is 2.440-2.455 nm, the non-framework aluminum content in the modified Y-type molecular sieve is not more than 20% of thetotal aluminum content, the lattice collapse temperature is not below 1050 DEG C, and a ratio of the amount of B acid to the amount of L acid is not less than 2.50. According to the present invention,the catalytic cracking catalyst has advantages of high heavy oil conversion activity, low coke selectivity, high diesel yield, high liquefied gas yield, high light-oil yield and high total liquid recovery.