Efficient cutter device used for printer and printer

The invention provides an efficient cutter device used for a printer and the printer. The cutter device comprises a fixing frame, a fixed cutter and a movable cutter. The fixed cutter is arranged on the fixing frame and provided with a fixed blade, and a cutting edge of the fixed blade is formed by two intersecting planes. The movable cutter is located above the fixed cutter and rotatably arranged on the fixing frame. The movable cutter comprises a movable blade and a support, wherein the movable blade is arranged in the support, and a cutting edge of the movable blade is formed by intersecting a curved surface and a plane and arranged obliquely relative to the cutting edge of the fixed blade, and protrudes outwards relative to the support. A scrap discharging space is formed between the top surface of the movable blade and the support. According to the cutter device, the cutting edge of the movable blade protrudes outwards relative to the support, and the scrap discharging space is formed between the top surface of the movable blade and the support. Paper scraps generated in the cutting process are removed out smoothly along the scrap discharging space, so that smooth cutting is ensured.