In the present work, we reported the growth of silicon nitride (Si3N4) microrings formed by self-coiling of nanobelts with a typical saw-like structure on one side, which were synthesized via catalyst-assisted pyrolysis of organic precursors. The as-grown microrings were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The pyrolysis temperature played a crucial role in the self-coiling of Si3N4 microrings, enabling the tailored growth of Si3N4 microrings. The mechanism for the growth of Si3N4 microrings was discussed, which mainly involved the growth of Si3N4 nanobelts via a vapor-solid (VS) process, followed by bending into a ring-like shape driven by the surface stress.