The utility model relates to the technical field of geological prospecting. The utility model discloses a soil stratified sampling device. According to the technical scheme, the device comprises a mounting frame, wherein the mounting frame consists of a mounting part and a leveling part which is adjustable in length and is inserted into soil; the number of the leveling parts is two, the leveling parts are vertically fixed to the two ends of the bottom face of the installation part, sampling devices perpendicular to the installation part are arranged on the opposite side faces of the leveling parts, and the sampling devices are connected between the two leveling parts in a sliding mode through a driving mechanism used for controlling the sampling devices to move vertically. The soil sampleris suitable for soil sampling.