Abstract: The Institute of Astronomy, National Central University, Taiwan has various studies of Astronomy, in which the solar system lab is one of the most active groups in small solar system body (SSSB) research in Taiwan. Our group has been actively participating in several international collaborations (including Pan-STARRS, the Rosetta mission, and iPTF) and conducting some important SSSB studies in the past few years (including asteroid spin rate study, the origin of Q-type asteroids, photometric and spectral classification of NEAs, characterization of asteroids-in-cometary-orbits, Neptune Trojan discovery, searching for co-plane high-inclination TNOs, distant activity of Jupiter Family Comets, jet activity and dust transport of comet 67P, and comet monitoring). In this talk, I will briefly introduce the topics below: (a) the asteroid spin rate study, (b) the origin of Q-type asteroids, (c) Neptune Trojan Discovery, (d) searching for the co-plane high-inclination TNOs, and (e) distant activity of Comets.