The utility model provides a smoke particulate sampling device based on thermophoresis principle. This sampling device, its characterized in that includes: the sampling rifle, it is a hollow body, the carrier is collected to the particulate matter, its set up in on the side outer surface of the wall of sampling barrel body one end, coolant, its fill in in the body of sampling rifle. The utility model provides a smoke particulate sampling device utilizes the thermophoresis principle to make smoke particulate deposit on sampling device, so gather, sample work, the device need not to use the mechanical pump, and equipment is simple, and the transportation of being convenient for, equipment and field operation are with low costs, and may not use external power supply, be fit for carrying on long -time sample, ten fens convenient safety of operation process.