Abstract: A sample collector of this invention includes a projectile projecting unit n which a projectile is loaded and which has a projecting outlet for projecting out the projectile loaded therein, an enclosed container which is communicated with the projecting outlet of the projectile projecting unit, which has a projectile passing hole arranged at a position located away from the projecting outlet, the passing hole allowing the projectile to pass through it after the projectile is projected out from the projecting outlet, and which covers a space between the projecting outlet of the projectile projecting unit, and a kinetic energy absorbing mechanism which is arranged around a projectile path between the projecting outlet of the projectile projecting unit and the projectile passing hole of the enclosed container. The kinetic energy absorbing mechanism may be an independent active type such as brushes or an integral passive type structured by a part of the container.