To provide a structurally-simple sampling device capable of surely sampling a filler at a predetermined depth.

This sampling device for collecting a sample of soil cement from the ground includes a bottomed tubular body 10 and a working shaft 20 for moving the tubular body 10 upward and downward. The tubular body 10 has a top-surface flange 12 with an opening wider than the penetrating working shaft 20, while the working shaft 20 comprises an upper flange 22 and a sliding flange 24 with a through-hole 24a. An undersurface of the upper flange 22 abuts on the top-surface flange 12 at a lowered position of the working shaft 20. Also, the sliding flange 24 is freely slidable along an inner wall of the tubular body 10, and abuts on an undersurface of the top-surface flange 12 in an upper position of the working shaft 20.