The invention discloses an automatic particle material sampling and conveying system which belongs to the field of chemical machinery. The system comprises a sampling device, a conveying device and a gas-solid separation and collection device which are connected in sequence, wherein a control system is used for automatically controlling the all devices, the sampling device comprises a platform bracket and at least three samplers which are installed on the platform bracket, the samplers comprise sleeves, sampling rods positioned inside the sleeves, and pushing-pulling devices connected with the sampling rods, air supply holes and conveying holes, which are communicated with each other, are formed in the sleeves, the sampling rods are provided with material holes which are opposite to the conveying holes. The automatic particle material sampling and conveying system has the beneficial effects that particle materials can be sampled and conveyed automatically without people on site, so that manpower and material resources are saved greatly; electrical apparatus elements are not adopted at the sampling and conveying place, and the whole device is not electrified, so that safety is high; the automatic control of the online sampling and conveying process can be realized rapidly, and the automatic particle material sampling and conveying system is suitable for sampling particle materials in dangerous places.