A scanning probe microscope having a cantilever holder is provided which
gives a cantilever great amplitude by a small-sized vibrator configurable
in a limited space and is stably operated even in environments of high
viscous drag such as a liquid. A cantilever base part of a cantilever is
fixed to a fixing part of a scanning probe microscopy cantilever holder.
A vibrator is mounted on the fixing part. When it is defined that the
front side is the side close to a probe and the rear side is the side
close to a supporting part of the fixing part along in the longitudinal
direction of the cantilever, the vibrator displaces the front and rear
sides of the fixing part of the cantilever holder to each other in the
opposite directions within the plane orthogonal to the sample surface to
vibrate the cantilever in a liquid.