The invention provides a fresh meat slicer which is small in size, simple in structure and convenient to clean. According to the working principle of the fresh meat slicer, a set of line-shaped cutting blades (5) is arranged on an extended rotating shaft of a motor. The radii of the cutting blades (5) can enable the cutting blades (5) to pass through a plurality of vertical thin slots (3) and directly penetrate out of a steel cylinder (4) for 0.5cm. The thin slots are formed in the cylinder walls of two sides of the upright rectangular steel cylinder (4). All the planes and spaces in the middle of the steel cylinder (4) are occupied by the cutting blade set (5) which rotates at high speed. A fresh meat piece is cut into meat slices from an inlet (2) of the steel cylinder (4) to an outlet (7). The distance between the blades can be adjusted, and the fresh meat slicer can be used for cutting instant-boiled mutton slices, fried pork slices and twice cooked spicy pork slices with different thicknesses.