The invention discloses a high iron aluminate-belite-sulfoaluminate cement clinker and a preparation method thereof. The high iron aluminate-belite-sulfoaluminate cement clinker comprises the following components in percentages by mass: 25 to 35% of C4A3S<->, 32 to 42% of C2S, 10% to 30% of C4AF and 15 to 25% of f-CaSO4; and besides, the cement clinker also comprises CT. The invention also discloses a preparation method for the cement clinker. The preparation method comprises the following steps: respectively subjecting a calcareous raw material, a salic raw material, a ferruginous raw material and a gypsum component to drying, crushing and grinding, and carrying out weighing and mixing in proportion, adding a certain amount of water and carrying out uniform mixing, carrying out press molding so as to obtain sample blocks, then carrying out calcination at 950 DEG C for 30 min, then immediately transferring the calcined sample blocks into a high-temperature furnace with a temperature of1275 DEG C to 1350 DEG C, continuing calcination for 30 to 60 min, and carrying out air-blast cooling so as to obtain the clinker. The preparation method provided by the invention gets rid of the modulus limit of traditional sulfoaluminate cement, and improves the content of free gypsum on the basis of high iron aluminate and high belite; and the clinker prepared by using the preparation method provided by the invention has mechanical properties capable of meeting requirements of sulfoaluminate cement 525, and has good wear resistance.