The invention relates to a
fruit tree pollinating device which comprises a support frame, a
pollinator and a controller, wherein the support frame is arranged on one side of an
orchard and provided with a guide rail; the
pollinator is slidably arranged on the guide rail, and the
pollinator comprises a
pollen box, a spray
pipe, an air delivery
pipe and an
air pump; the intermediate part of the spray
pipe is separated to form a pressure chamber and a
pollination chamber which correspond to two ends of the spray pipe, the pressure chamber is connected with the
air pump through the air delivery pipe, and a telescopic
pollination pipe is spliced in the
pollination chamber; and the
pollen box is connected to the intermediate part of the air delivery pipe, the upper end of the
pollen box is provided with an air inlet and a pollen outlet, the air inlet is communicated with the pressure chamber, and the pollen outlet is communicated with the pollination chamber. The
fruit tree pollinating device disclosed by the invention can accurately treat the pollination of a pollinating flower, cannot cause omission and achieves the saving by saving the usage amount of pollen. According to the
fruit tree pollinating device, the amount of the pollen inside the pollen box is kept stable, so that the amount of the pollen sprayed from the pollination pipe is kept stable under the action of same pressure; and a wide pollinating covering surface is achieved.