The invention belongs to the technical field of agricultural mechanical equipment, in particular to agricultural pernicious bird repelling assisting equipment, and achieves the technical purpose of providing the agricultural pernicious bird repelling assisting equipment simple in structure and convenient to operate. To achieve the technical purpose, the agricultural pernicious bird repelling assisting equipment comprises a base plate, two supports, guide covers, a guide rod, a slide rail, a slide block, a mechanical box, a first bearing base, a first rotary shaft, a second bearing base, a small belt pulley, a chassis and the like; the base plate is provided with the supports, both supports are provided with the guide covers, the guide rod is arranged between the guide covers and is provided with the slide rail, the slide block is slidably arranged on the slide rail, and the mechanical box is arranged at the left side of the base plate. The agricultural pernicious bird repelling assisting equipment has the advantages of being simple in structure and convenient to operate. By conducting multiple kinds of work of dynamically rotating a strawman, spraying water mist, knocking a gong and the like, the purpose of effectively repelling pernicious birds is achieved, and crops are protected against damage.