The invention discloses a biological frozen tissue cutting device which is used for achieving the fast cutting on frozen biological tissues. The biological frozen tissue cutting device comprises a base, a support, a stand column, a pressing plate, cutting tools and a splash guard cover, wherein the upper portion of the base is provided with the support, one side of the support is provided with the stand column moving vertically relative to the support, and a driving assembly used for driving the stand column to ascend and descend is arranged between the stand column and the support; the pressing plate is fixed onto the bottom of the stand column, the bottom of the pressing plate is provided with a plurality of installing frames, the installing frames are located on the same circumference and evenly distributed on the circumference, at least two of the installing frames are provided with the cutting tools, and the cutting tools are provided with blades used for cutting biological tissues; the splash guard cover is arranged on the position, under the pressing plate, of the base, and biological frozen tissues to be cut are placed in the splash guard cover. According to the biological frozen tissue cutting device, a motor drives the pressing plate to descend to drive the blades to descend, the blades extrude the frozen tissues to achieve the cutting of the frozen tissues, and the problem that direct manual pressing of the blades wastes time and strength is solved.