The invention belongs to the technical field of soil sampling. The invention in particular relates to a soil sampling device for soil environment detection, so that a problem for soil preservation issolved. The device comprises a soil sampling tank, and a transverse plate is arranged on the inner wall of the soil sampling tank; an 
air heater is arranged on the outer wall of the top of the transverse plate; and an air-
drying storage box and a low-temperature storage box are arranged on the two sides of the outer wall of the top of the transverse plate correspondingly, a 
semiconductor chillingplate is arranged on the inner wall of the low-temperature storage box, hot air discs are arranged on the two sides of the inner wall of the air-
drying storage box correspondingly, first guide pipes are arranged on the inner walls of one sides of the hot air discs, and an electric sliding rail is arranged on the top inner wall of the air-
drying storage box. The device is provided with the air-drying storage box, the low-temperature storage box, the 
semiconductor chilling plate, the 
air heater, the hot air discs, the electric sliding rail, a second hydraulic rod and an 
extrusion protrusion. Soil can be subjected to air-drying preservation and low-temperature preservation according to soil detection items, and when the soil is subjected to air-drying preservation, the 
air heater can be started to conduct hot 
air drying on the soil through the hot air discs.