The invention discloses a fruit tree harvesting device which comprises a clamping and vibrating device, a supporting and adjusting device, an automatic folding/unfolding collecting umbrella, a fruit collecting device and a tractor. The clamping and vibrating device is hung on the supporting and adjusting device through a chain. The supporting and adjusting device is installed on the front side ofthe tractor. The automatic folding/unfolding collecting umbrella is installed on the supporting and adjusting device. The fruit collecting device is fixed to the front side of the tractor, and one endof the fruit collecting device is connected with the supporting and adjusting device. The fruit tree harvesting device can be used for harvesting fruits such as dry fruits, red dates, cherries, apples for juice and citruses and is wide in application range, the full-automatic work of the harvesting process is achieved, and the harvesting efficiency is greatly improved.