The invention belongs to the technical field of rotary-cutting of timber and discloses a panel feeding, rotary-cutting and stacking integrated device. The panel feeding, rotary-cutting and stacking integrated device comprises a rounding machine and a rotary-cutting machine. The panel feeding, rotary-cutting and stacking integrated device is characterized in that a feeding device is arranged at the feeding end of the rounding machine, and a timber collator is arranged at the discharging end of the rounding machine; the back side of the collator is connected with the rotary-cutting machine through the feeding device; a conveying rack is arranged at the discharging end of the rotary-cutting machine and is connected with a vacuum adsorption automatic panel collector through a screening device. According to the panel feeding, rotary-cutting and stacking integrated device, rounding, rotary-cutting and stacking of timber are integrated, the feeding device, the collator and the screening device are additionally arranged, fully-automatic streamlined production is achieved, and the technical problems that in the prior art, dangerousness is high, time consumption and labor consumption are high, occupied space is large, and working efficiency is low are effectively solved.