The invention provides a fabric cutting device and belongs to the technical field of machinery. The problem of a poor cutting effect in the prior art is solved. The fabric cutting device comprises a conveying platform, a cutter frame is arranged transversely on the conveying platform and provided with a fixing base and a transverse moving mechanism capable of driving the fixing base to transversely move, and a cutting mechanism is arranged in the fixing base and comprises a cutter holder and a cutting cutter disposed on the cutter holder. The fixing base is provided with a lifting mechanism capable of driving the cutter holder to move up and down, a rotating mechanism capable of rotating the cutting cutter, a sharpening mechanism capable of sharpening the cutting cutter and a buffer protection mechanism capable of protecting the cutting cutter. The fabric cutting device has the advantage of a good cutting effect.