Forest tree planting hole digging device

The utility model relates to the technical field of forest tree planting, in particular to a hole digging device for forest tree planting. The forest tree planting hole digging device comprises a fixing plate, and a spiral blade is arranged below the fixing plate; the stirring assembly is arranged outside the spiral blade below the fixing plate, the stirring assembly comprises a fixing ring, a plurality of supporting rods which are evenly distributed are arranged at the bottom of the fixing ring, and a stirring piece is arranged on the outer wall of each supporting rod. According to the hole digging device for forest tree planting, the stirring assembly can be driven to rotate while the motor drives the spiral blade to dig holes, the rotating stirring assembly can push soil dug out by the spiral blade outwards through the stirring piece in the stirring assembly, the soil is made to be far away from holes of the dug holes, and the hole digging efficiency is improved. Therefore, the phenomena that the soil shie