Pesticide spraying robot

The invention belongs to the technical field of agricultural equipment, and particularly relates to a pesticide spraying robot, through the arrangement of a pesticide spraying mechanism, when pesticide spraying treatment is conducted on fruit trees, the pesticide spraying robot can cover the fruit trees to the maximum extent, and the more uniform and comprehensive spraying treatment effect is achieved; in the preparation process, on one hand, the device can adapt to branches and trunks of a fruit tree and autonomously avoid the branches and trunks, the situation that hard parts are not prone to entering the fruit tree during preparation and are prone to being scratched is avoided, meanwhile, the effect of swinging the expansion bag can be achieved through intermittent gas connection and disconnection of an external gas supply mechanism, and then the wider spraying range is widened; and due to the arrangement of the storage mechanism, the expansion bag can be correspondingly stored and protected when the equip