The utility model relates to a fruit tree expelling parasite auxiliary equipment's technical field especially relates to a sprinkler of plant diseases and insect pests is driven away to fruit tree, and it wholly highly can conveniently be adjusted, improves its adaptability, and among the expelling parasite medicament spraying process, its practicality is improved to inside easy observation of working chamber, and when the road surface is smooth inadequately, cushion rocking of work box to improve it and use the reliability, including bottom plate, connecting rod, push rod, four group's supports and four group's gyro wheels, still include the work box, inlet department is provided with and keeps off the lid, and work box right side below intercommunication is provided with connecting flexible pipe, all including inserting post and intubate, four group's supports still all include bolt and nut to four group's supports, and the bolt left end is provided with ear soon, still include transparent baffle, keep off covering to communicate to be provided with and observe the hole, still include the slide, drive board and brush hair, keep off caping end front and back to being provided withthe spout, still include buffer spring group and buffer board.