The invention relates to a sampler, and belongs to the technical field of sampling. The sampler comprises a
handle, an operating platform, an external drilling
barrel, height scales, a small horizontal
liquid bubble, a sample discharging groove, a vertical shaft, a
drill bit, a
drill bit sampling hole, a rotating buckle, a longitudinal sampling ring knife, a lug clamping groove, a transverse sampling hole, a transverse sampling ring knife, sawteeth, a
piston-type
tail piece, a
tail portion lug, a thread, a bottom rotating gear, a bottom control gear, a bottom rotating gear fixing shaft, a sampling rod, a sampling rod
handle, a sampling rod moving groove, a sliding key, a spring ball, a spring ball clamping groove, a turning gear, a transverse control gear, a longitudinal adjusting gear, a longitudinal adjusting gear
handle, a longitudinal adjusting gear fixing shaft, a compaction sensor, a
humidity sensor, a wire, a
data display setup screen, a battery and a sample pushing needle. By the adoption of the sampler, spot sampling can be guaranteed, and disturbance to surrounding samples is reduced; transverse sample discharging and longitudinal sample discharging are independent of each other, and sample discharging is thorough. The sampler has the advantages of being reasonable in structure, convenient to operate and capable of saving time and labor.