The invention provides a sampling device, and relates to the technical field of clinical examination instruments. The sampling device comprises a fixed plate, a first drive mechanism arranged on the fixed plate, a swing arm rotationally arranged on the fixed plate, a sampler installed on the swing armand a second drive mechanism installed on the swing arm. The swing arm can achieve reciprocating oscillation under the drive of the first drive mechanism, and the sampler performs rectilinear motion relative to the swing arm under the drive of the second drive mechanism. The sampling device reduces the movement amplitude of the sampler, facilitates reduction of the lengths of pipelines and wire rods on the sampling device, can remove a drag chain on a current sampling device and avoids the interference inthe sample analysis result due to the generation of drag chainchip falling caused by dynamical friction.