The invention discloses a safety intelligent treadmill with a function of preventing side falling. The safety intelligent treadmill comprises a body and a running belt. The running belt is arranged on the surface of the body, a base is arranged at the bottom of the body, two supports are connected with the base through two lifting mechanisms, an instrument plate is mounted on the supports, a display screen is arranged in the center of the instrument plate, a left armrest and a right armrest are arranged at two ends of the instrument plate, a brace opening is formed in the inner wall of the right armrest, a drum is arranged inside the right armrest, two ends of the drum are fixed onto the right armrest by the aid of rotary shafts, and a trigger brace is wound on the surface of the drum and penetrates the brace opening to be fixedly connected with a hand pull ring outside the right armrest. The safety intelligent treadmill has the advantages that an existing treadmill in markets is improved, a plurality of safety air bags are added into the safety intelligent treadmill, the safety intelligent treadmill can be controlled in a hand pull manner when users run, and accordingly, lateral falling behavior can be accurately judged; the safety air bags can be quickly filled with air when the users fall to the side, the safety intelligent treadmill has intelligent running function, and the safety of the safety intelligent treadmill can be greatly improved.