The invention relates to the technical field of fabric, in particular to a cloth cutting device capable of replacing a blade for textile fabric processing. The cloth cutting device comprises the fabric and a conveyor belt, wherein a working table plate is arranged on one side of the fabric, a plurality of supporting legs are fixedly arranged on one side of the working table plate, a plurality of supporting rods are fixedly arranged on one side of the conveyor belt, the other end of each supporting rod is fixedly connected to one side of the working table plate, an inverted-U-shaped frame is fixedly arranged on one side of the working table plate, a Z-shaped hollow frame is fixedly arranged on one side of the inverted-U-shaped frame, and a driving shaft is arranged on one side of the Z-shaped hollow frame. Through arrangement of the driving shaft, a servo motor, a driving discharging barrel, a pressing shaft, a movable hole, a driven pressing barrel, a U-shaped clamping base, a sliding clamping base, an L-shaped sliding frame, a spring, a telescopic hydraulic cylinder, a bevel edge cutter and a T-shaped fixing strip, the automatic cutting device has the functions of automatic feeding, accurate feeding, automatic cutting, deviation prevention, convenience in blade replacement, automatic collection and the like.