The invention discloses a full-automatic jujube picking and sorting machine. The full-automatic jujube picking and sorting machine comprises a picking sucking head assembly, a rocker arm assembly, a rotary support and a cleaning and selecting device, wherein the picking sucking head assembly comprises an eccentric wheel, an air chamber, a connecting rod arm and a sucking head barrel; the sucking head barrel is connected with the air chamber through an air tube; a piston is arranged in the air chamber; the top and the bottom of the connecting rod arm are separately hinged to the piston and theeccentric wheel; the rotary support comprises a chassis, a worm, a worm gear and a vertical frame; the worm is controlled through a motor; the worm gear is in transmission connection with the worm; the vertical frame is fixed on the worm gear; the rocker arm assembly comprises a lead screw, a nut seat, a rocker arm rod and a connecting rod; the lead screw is driven through a motor; the nut seat isconnected to the lead screw; the cleaning and selecting device comprises a first belt conveyor, a second belt conveyor and two receiving baskets; the first belt conveyor is driven through a motor; and the two receiving baskets are separately arranged at the front ends of the first belt conveyor and the second belt conveyor. By the full-automatic jujube picking and sorting machine, jujubes can bepicked and sorted according to sizes, and the working efficiency is improved.