The invention provides a production technique of a ten-tooth riveting iron core. The production technique comprises the steps that a guide hole is punched; shape cutting is conducted for the first time; a left iron core plate is formed; a right iron core plate is formed; package pulling is conducted upwards or downwards for the first time; package pulling is conducted upwards or downwards for the second time; package pulling is conducted upwards or downwards for the third time; package pulling is conducted upwards or downwards for the fourth time; a middle hole is punched; inner teeth are bent upwards or downwards; inner iron core teeth are shaped; riveting protruding points are stamped; riveting punched holes are stamped; shape cutting is conducted for the second time; shape pre-cutting is conducted; teeth of a left iron core body and teeth of a right iron core body are riveted; an upper product and a lower product are riveted; and the iron core is disengaged from a metal material belt through shaping and stamping. According to the production technique, the riveting protruding points and the riveting punched holes can be connected in a riveted mode, so that accurate positioning of an upper iron core body and a lower iron core body is achieved; forming is stable, the product yield is high, and the problems that when a stepping motor is installed in an injection molding mode, an iron core is deformed, two half iron core bodies are prone to separation, and the service life is short are solved; and through the design of ten iron core teeth, the strength of the iron core is high, the product torsion is improved by 30-40%, the product performance is good, the production technique is quite suitable for stepping motors, the structure is simple, and the production cost is low.