To provide a thin film slicer for readily producing a thin film slice.

In the thin film slicer 10, a sample holder 14 and a cutting blade 16 are disposed at a predetermined angle to a base 12 so as to obtain an angle determined from a predetermined cross-section angle and formed by the sample face direction 24 of a thin film 20 and a feed direction 26 of the cutting blade 16, the sample holder 14 pinches a sample face 22 of the thin film 20 other than a sliced part 28 so as to form a predetermined angle of the sample face direction 24 of the thin film 20 to the feed direction 26 of the cutting blade 16, the cutting blade 16 is disposed and is made to move linearly in the direction 26, at a predetermined angle with respect to the sample face 22 of the thin film 20 and cuts the thin film 20 held by the sample holder 14 on the sample face 22 side, and a feed means 18 linearly feeds and moves the cutting blade 16 in the direction 26 at the predetermined angle to the sample face 22 of the thin film 20 held by the sample holder 14.