A steel pen nib embossing device comprises a base, the top of said base is fixedly installed with an operating platform, and the top of said operating platform is provided with a slide. The slide's internal cavity is provided with a sliding block, the top of which is fixedly connected to a support column. The sliding block can move the support column on the top of the operating table to adjust the position of the fixed ring. The fixed screw can be rotated by the knob to move the fixed ring inward to fix the pen body and fix it well. It can effectively prevent the pen body from shaking during embossing, which increases the number of defective products. In addition, by adjusting the height of the telescopic rod, the nib can be placed on the placing surface. At the same time, the existing embossing device does not fix the pen well and cannot be applied to steel pens of various types and specifications, which is of low practicality.