The invention relates to the technical field of feeding, and discloses a particle feeding device for fishpond feeding, which comprises a feeding bin, a discharging bin is arranged at the top of the feeding bin and located in the center, a feeding channel is arranged in the feeding bin and located below the discharging bin, one end of the feeding channel communicates with the discharging bin, an annular air channel is formed in the position, located on the outer side of the discharging bin, in the feeding bin, and the screw pitch of a spiral conveying piece is continuously increased from top to bottom, so that materials in a storage bin enter the corresponding position of the spiral conveying piece through a conveying pipe and a conveying sliding block, in the process that a power machine drives the material conveying device to rotate, the materials can be driven to move downwards along the spiral shape of the spiral material conveying piece, the space where the materials are located is gradually enlarged, and the problems that the space is reduced, conveying is blocked and the attachment problem is gradually serious after the situation that sundries are attached to a traditional conveying piece due to the same screw pitch are avoided, and the stability of the device in the conveying process is improved.