The invention discloses a multifunctional intelligent rehabilitation robot for assisting stand and walk. The whole robot comprises three parts basically: a mechanical stand assisting device, a chassis moving device and a monitoring control device, wherein the mechanical stand assisting device comprises a support base, a swing arm, an electric push rod and a handrail device; the chassis moving device comprises a base, a motor fixing frame, four Mecanum wheels, a braking ratchet wheel, a braking sheet, and the like; the monitoring control device comprises a force sensor array, a vision sensor, a distance-measuring sensor, and the like; and in addition, the robot also comprises a power source storage battery, and the like. The robot can realize the auxiliary stand and walk assistance to a user, can lift the user up safely and comfortably under the condition of sitting posture, judge the motion intention of the user in the walking process and carry out all-sided collaborative motion; meanwhile, the robot can also detect the moving tread of the user so as to judge the stability of the user and do corresponding assistance to the user at the real time; and the robot can safely and effectively assist patients with lower limbs being injured to carry out rehabilitation training and assist the daily activities of weak old people.