An intelligent citrus picking robot and a citrus picking method, the robot includes a walking mechanism, a mechanical arm, a worktable, a recovery device, a control system and a power supply system, the mechanical arm, the control system and the power supply system are installed on the worktable, and the front end of the mechanical arm is provided The end effector and the vision system, the vision system is connected with the control system data, the control system controls the movement of the manipulator through the manipulator drive unit, the control system controls the movement of the walking mechanism through the walking drive unit, and the power supply system provides work for the control system and the walking mechanism power supply; the mechanical arm comprises a first arm, a second arm, a third arm, a fourth arm, a fifth arm and a sixth arm which are movably connected in turn; the citrus picking method comprises: starting a walking mechanism, making the robot approach fruit trees, searching for citrus, Catch citrus, pick citrus, adjust grip force, recycle citrus. The invention has high picking efficiency, high picking quality, high intelligence, strong practicability, and is easy to popularize and use.