Sewing machine

The present invention relates to a sewing machine that has improved conveying performance for a sewing object. The sewing machine includes: a pressing spring for applying a force downwards to a presser rod; a presser foot body that is fixed to the presser rod and has a presser foot; lower feeding teeth that protrude upwards from a needle plate and convey the sewing object backwards; an upper feeding mechanism that is arranged on an upper side of the lower feeding teeth and has upper feeding teeth disposed at a rear side of a needle dropping position, such that when the upper feeding mechanism acts, the upper feeding teeth and the lower feeding teeth together convey the sewing object backwards; and a spring pressing release mechanism having a transmitting member that is arranged relatively movable at the presser rod and transmits the force applied by the pressing spring to the presser rod, such that when the spring pressing release mechanism acts in a manner that the lower feeding teeth are abutted against the