A propelling system disposed in a chamber of a capsule is provided. The propelling system includes a mass and a damping module. The mass is configured for vibrating in the chamber along a plurality of directions. The damping module is coupled between the mass and the capsule for absorbing the kinetic energy of the mass, the damping module provides the smallest damping effect along a first direction. The disclosure further provides a capsule, which includes a shell having a chamber and at least one aforementioned propelling system disposed in the chamber. Accordingly, the capsule can be autonomously propelled by the propelling force autonomously produced by the propelling system.
