Pressing type medical blood-letting puncture device

The utility model discloses a pressing type medical blood-letting device for blood puncture, which comprises a pressing block, and a needle seat, a blood taking needle, a magnet A and a magnet B are arranged in the pressing block; the needle base is connected into the pressing block in a sliding mode. The needle body of the blood taking needle is fixedly connected to the needle seat, and the needle head is positioned below the needle seat; the magnets A are fixedly connected to the upper side in the pressing block, and the two magnets A are located on the left side and the right side of the inner wall of the pressing block correspondingly; the magnets B are fixedly connected to the upper side of the needle base, and the two magnets B are located on the left side and the right side of the needle base respectively; a pushing rod is fixedly connected to the middle of the upper side of the needle base, the upper side of the pushing rod penetrates through the pressing block and extends to the outer side of the pre