Agricultural plant protection device

The invention discloses an agricultural plant protection device, and relates to the technical field of agricultural vegetation protection equipment. The agricultural plant protection device comprises an outer sleeve ring, the outer sleeve ring comprises two semi-ring rails which are spliced with each other, positioning plates used for being fixed to the other semi-ring rail in a matched mode are fixedly installed at the two ends of each semi-ring rail, a bolt used for locking a whole outer sleeve ring body is inserted between every two corresponding positioning plates, annular rails which can correspond to each other are fixedly installed on the inner circles of the middles of the two semi-ring rails, and inner rings are rotationally arranged on the annular rails. The inner rings are rotatably arranged in the outer sleeve ring, an inserting rod is fixedly installed at the bottom of the outer sleeve ring, an arc-shaped blade is arranged at the bottoms of the inner rings, when precious seedlings need to be tran